{"id":53968,"date":"2026-06-17T20:00:00","date_gmt":"2026-06-17T12:00:00","guid":{"rendered":"https:\/\/zetarmold.com\/?p=53968"},"modified":"2026-06-17T12:01:57","modified_gmt":"2026-06-17T04:01:57","slug":"petg-%ec%82%ac%ec%b6%9c-%ec%84%b1%ed%98%95","status":"publish","type":"post","link":"https:\/\/zetarmold.com\/ko\/petg-%ec%82%ac%ec%b6%9c-%ec%84%b1%ed%98%95\/","title":{"rendered":"PETG \uc0ac\ucd9c \uc131\ud615: \uc5d4\uc9c0\ub2c8\uc5b4\ub97c \uc704\ud55c \uc644\uc804\ud55c \uac00\uacf5 \uac00\uc774\ub4dc"},"content":{"rendered":"<p><a href=\"https:\/\/www.eastman.com\/en\/products\/product-detail\/71040786\/eastar-6763-copolyester\">PETG<\/a><sup id=\"fnref1:1\"><a href=\"#fn:1\" class=\"footnote-ref\">1<\/a><\/sup> (\ud3f4\ub9ac\uc5d0\ud2f8\ub80c \ud14c\ub808\ud504\ud0c8\ub808\uc774\ud2b8 \uae00\ub9ac\ucf5c)\uc740 \ub2e4\ub978 \uc5f4\uac00\uc18c\uc131 \uc18c\uc7ac\uac00 \ub530\ub77c\uc62c \uc218 \uc5c6\ub294 \uc774\uc0c1\uc801\uc778 \uc9c0\uc810\uc5d0 \uc788\uc2b5\ub2c8\ub2e4: \ud3f4\ub9ac\uce74\ubcf4\ub124\uc774\ud2b8\uc5d0 \uadfc\uc811\ud558\ub294 \uad11\ud559\uc801 \uc120\uba85\ub3c4, ABS\uc5d0 \ud544\uc801\ud558\ub294 \ub0b4\ucda9\uaca9\uc131, \uadf8\ub9ac\uace0 \ub458 \ub2e4\ub97c \ub2a5\uac00\ud558\ub294 \ub0b4\ud654\ud559\uc131 \u2014 \ubaa8\ub450 \ub354 \ub0ae\uc740 \uac00\uacf5 \uc628\ub3c4\uc640 \ube44\uc6a9\uc73c\ub85c \uac00\ub2a5\ud569\ub2c8\ub2e4. \ud22c\uba85\ud55c \uc758\ub8cc \uae30\uae30 \ud558\uc6b0\uc9d5, \uc18c\ube44\uc790 \uc804\uc790 \ub514\uc2a4\ud50c\ub808\uc774 \ucc3d, \uc2dd\ud488 \uc811\ucd09 \uc6a9\uae30\ub97c \uc190\uc5d0 \ub4e4\uace0 \ubcf8 \uc801\uc774 \uc788\ub2e4\uba74, \uadf8\uac83\uc774 PETG\ub85c \uc131\ud615\ub418\uc5c8\uc744 \uac00\ub2a5\uc131\uc774 \ub192\uc2b5\ub2c8\ub2e4. \ubcf8 \uac00\uc774\ub4dc\uc5d0\uc11c\ub294 \uac74\uc870 \ubc0f \uc6a9\uc735 \uc628\ub3c4\ubd80\ud130 \uac8c\uc774\ud2b8 \uc124\uacc4\uc640 \uacb0\ud568 \ud574\uacb0\uc5d0 \uc774\ub974\uae30\uae4c\uc9c0, \uc0ac\ucd9c \uc131\ud615 \ud604\uc7a5\uc5d0\uc11c PETG\ub97c \uc131\uacf5\uc801\uc73c\ub85c \uc6b4\uc601\ud558\ub294 \ub370 \ud544\uc694\ud55c \ubaa8\ub4e0 \uac83\uc744 \uc0b4\ud3b4\ubd05\ub2c8\ub2e4.<\/p>\n<div class=\"callout-key\" style=\"background:#f0f7ff; border-left:4px solid #2563eb; padding:1em 1.2em; border-radius:6px; margin:1.5em 0;\">\n<strong>\uc8fc\uc694 \ub0b4\uc6a9<\/strong><\/p>\n<ul>\n<li>PETG\ub294 \uc720\ub9ac \uc804\uc774 \uc628\ub3c4\uac00 \uc57d 88\u00b0C\uc778 \ube44\uc815\uc9c8 \uacf5\uc911\ud569\uccb4\ub85c, \uc131\ud615\uc774 \uc27d\uace0 \uac15\uc778\ud558\uba70 \uacb0\uc815\ucc98\ub7fc \ud22c\uba85\ud569\ub2c8\ub2e4.<\/li>\n<li>PETG\ub97c 65\u201375 \u00b0C\uc5d0\uc11c 4\u20136\uc2dc\uac04 \uac74\uc870\ud558\uc138\uc694; 0.02 % \uc774\uc0c1\uc758 \uc218\ubd84\uc740 \uc2a4\ud50c\ub808\uc774\uc640 \ucde8\uc131\uc744 \uc720\ubc1c\ud569\ub2c8\ub2e4.<\/li>\n<li>\uc6a9\uc735 \uc628\ub3c4 \ubc94\uc704: 220\u2013260\u00b0C. \ubab0\ub4dc \uc628\ub3c4: \uc120\uba85\ub3c4\ub97c \uc704\ud574 15\u201340\u00b0C, \uc794\ub958 \uc751\ub825 \uc644\ud654\ub97c \uc704\ud574 \ucd5c\ub300 65\u00b0C.<\/li>\n<li>\ubcbd \ub450\uaed8\ub294 1.0\u20133.0 mm \uc0ac\uc774\ub97c \uc720\uc9c0\ud574\uc57c \ud558\uba70, \uade0\uc77c\ud55c \ub450\uaed8\ub294 \uc2f1\ud06c \ub9c8\ud06c\uc640 \ub0b4\ubd80 \uc751\ub825\uc744 \ubc29\uc9c0\ud569\ub2c8\ub2e4.<\/li>\n<li>PETG\ub294 FDA \uc2dd\ud488 \uc811\ucd09 \uae30\uc900\uc744 \uc900\uc218\ud558\uba70, \ub0b4\ud654\ud559\uc131\uc774 \uc6b0\uc218\ud558\uace0 \uc644\uc804\ud788 \uc7ac\ud65c\uc6a9 \uac00\ub2a5\ud569\ub2c8\ub2e4 \u2014 \uc758\ub8cc \ubc0f \uc18c\ube44\uc790 \uc81c\ud488 \uc751\uc6a9\uc5d0 \uc774\uc0c1\uc801\uc785\ub2c8\ub2e4.<\/li>\n<\/ul>\n<\/div>\n<h2>PETG\ub780 \ubb34\uc5c7\uc774\uba70 \uc0ac\ucd9c \uc131\ud615\uc5d0\uc11c \uc65c \uc911\uc694\ud55c\uac00\uc694?<\/h2>\n<p>PETG\ub294 \ud3f4\ub9ac\uc5d0\ud2f8\ub80c \ud14c\ub808\ud504\ud0c8\ub808\uc774\ud2b8(PET)\uc758 \uae00\ub9ac\ucf5c \ubcc0\uc131 \ubc84\uc804\uc785\ub2c8\ub2e4. \uae00\ub9ac\ucf5c \uacf5\ub2e8\ub7c9\uccb4\ub294 \uacb0\uc815\ud654\ub97c \ubc29\ud574\ud558\ub294\ub370, \uc774\ub294 \uc774 \uc18c\uc7ac\uac00 \ubab0\ub4dc \ub0b4\uc5d0\uc11c \uc5b4\ub5bb\uac8c \uac70\ub3d9\ud558\ub294\uc9c0 \uac70\uc758 \ubaa8\ub4e0 \uac83\uc744 \uc774\ud574\ud558\ub294 \uc5f4\uc1e0\uc785\ub2c8\ub2e4. \uacb0\uc815\ud654\ub418\uc5b4 \ubd88\ud22c\uba85\ud574\uc9c0\ub824\ub294 PET\uc640 \ub2ec\ub9ac, PETG\ub294 \ube44\uc815\uc9c8 \uc0c1\ud0dc\ub97c \uc720\uc9c0\ud569\ub2c8\ub2e4 \u2014 \ud22c\uba85\ud558\uace0, \uce58\uc218 \uc548\uc815\uc131\uc774 \uc6b0\uc218\ud558\uba70, \uac00\uacf5 \uc911 \uad00\ub300\ud569\ub2c8\ub2e4. \uc720\ub9ac \uc804\uc774 \uc628\ub3c4\ub294 \uc57d 88\u00b0C(190\u00b0F)\uc785\ub2c8\ub2e4. \uc774\ub294 \ud3f4\ub9ac\uce74\ubcf4\ub124\uc774\ud2b8(\uc57d 147\u00b0C)\ubcf4\ub2e4 \ud6e8\uc52c \ub0ae\uc9c0\ub9cc \ud3f4\ub9ac\uc2a4\ud2f0\ub80c\uacfc \uac19\uc740 \ubc94\uc6a9 \ud22c\uba85 \ud50c\ub77c\uc2a4\ud2f1\ubcf4\ub2e4\ub294 \ub192\uc2b5\ub2c8\ub2e4.<\/p>\n<p>\uc2e4\uc81c\ub85c PETG\ub294 \ub192\uc740 \uac74\uc870 \ubbfc\uac10\uc131\uc774\ub098 \ub4a4\ud2c0\ub9bc \uacbd\ud5a5 \uc5c6\uc774 PC\uc5d0 \uac00\uae4c\uc6b4 \uad11\ud559\uc801 \uc120\uba85\ub3c4\ub97c \uc81c\uacf5\ud569\ub2c8\ub2e4. \ub610\ud55c \ub354 \ub0ae\uc740 <a href=\"https:\/\/zetarmold.com\/ko\/injection-molding-complete-guide\/\">\uc0ac\ucd9c \uc131\ud615<\/a> \uc0ac\uc774\ud074 \uc2dc\uac04\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4. \uc65c\ub0d0\ud558\uba74 \ub354 \ub0ae\uc740 \uc6a9\uc735 \uc628\ub3c4\uc5d0\uc11c \ub0c9\uac01\ub418\uba70, \ubab0\ub4dc\uac00 \uadf8\ub9cc\ud07c \ub728\uac70\uc6b8 \ud544\uc694\uac00 \uc5c6\uae30 \ub54c\ubb38\uc785\ub2c8\ub2e4. \ud22c\uba85\ud558\uace0 \uac15\uc778\ud558\uba70 \ub0b4\ud654\ud559\uc131\uc774 \uc6b0\uc218\ud55c \ubd80\ud488\uc774 \ud544\uc694\ud558\uace0, \uc131\ud615 \uc708\ub3c4\uc6b0\ub97c \ub113\uac8c \uc720\uc9c0\ud558\ub824\ub294 \uc81c\uc870\uc5c5\uccb4\uc5d0\uac8c PETG\ub294 \uc885\uc885 \uccab \ubc88\uc9f8 \uc120\ud0dd\uc785\ub2c8\ub2e4.<\/p>\n<p>\uc774 \uc18c\uc7ac\ub294 \uc9c0\uc18d \uac00\ub2a5\uc131 \uce21\uba74\uc5d0\uc11c\ub3c4 \ub9e4\ub825\uc801\uc785\ub2c8\ub2e4. PETG\ub294 \uc7ac\ud65c\uc6a9 \uac00\ub2a5\ud558\uba70(\ub300\ubd80\ubd84\uc758 PET \uc2a4\ud2b8\ub9bc\uc5d0\uc11c SPI \uc218\uc9c0 \ucf54\ub4dc 1), \ub9ce\uc740 \ub4f1\uae09\uc774 FDA \uc2dd\ud488 \uc9c1\uc811 \uc811\ucd09 \uae30\uc900\uc744 \uc900\uc218\ud569\ub2c8\ub2e4. \uc77c\ud68c\uc6a9 \ubc0f \uc758\ub8cc \ud3ec\uc7a5\uc5d0 \ub300\ud55c \uaddc\uc81c \uc555\ub825\uc774 \uac15\ud654\ub428\uc5d0 \ub530\ub77c, PC \ube44\uc6a9 \uc5c6\uc774 \uc2dd\ud488 \uc811\ucd09 \ubc0f \uc758\ub8cc \ub4f1\uae09 \uae30\uc900\uc744 \ucda9\uc871\ud558\ub294 \ud22c\uba85 \uc5f4\uac00\uc18c\uc131 \uc18c\uc7ac\ub97c \ubcf4\uc720\ud558\ub294 \uac83\uc740 \uc2e4\uc9c8\uc801\uc778 \uc7a5\uc810\uc785\ub2c8\ub2e4.<\/p>\n<h2>PETG\uc758 \uc8fc\uc694 \uc7ac\ub8cc \ud2b9\uc131\uc740 \ubb34\uc5c7\uc778\uac00\uc694?<\/h2>\n<p>PETG&#8217;s key material properties include a glass transition of ~88 \u00b0C, tensile strength of 50\u201355 MPa, and 85\u201392 % light transmission. Before you set a single temperature on your barrel controllers, you need to understand the numbers that drive PETG behavior. Here is a summary of the properties that matter most on the production floor.<\/p>\n<table style=\"width:100%;border-collapse:collapse;margin:1.5em 0;\">\n<caption style=\"font-weight:bold;margin-bottom:0.5em;\">\uc0ac\ucd9c \uc131\ud615\uc744 \uc704\ud55c PETG \uc8fc\uc694 \uc18c\uc7ac \ud2b9\uc131<\/caption>\n<thead>\n<tr>\n<th style=\"border:1px solid #ddd;padding:8px;background:#f5f5f5;\">\uc18d\uc131<\/th>\n<th style=\"border:1px solid #ddd;padding:8px;background:#f5f5f5;\">Value<\/th>\n<th style=\"border:1px solid #ddd;padding:8px;background:#f5f5f5;\">\ucc38\uace0<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"border:1px solid #ddd;padding:8px;\">\ubc00\ub3c4<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">1.27 g\/cm3<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">\ubcf4\ud1b5; \ub9ce\uc740 \uc5d4\uc9c0\ub2c8\uc5b4\ub9c1 \ud50c\ub77c\uc2a4\ud2f1\ubcf4\ub2e4 \uac00\ubcbc\uc6c0<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #ddd;padding:8px;\">\uc720\ub9ac \uc804\uc774 \uc628\ub3c4 (Tg)<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">~88 \u00b0C (190 \u00b0F)<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">\ube44\uc815\uc9c8; \uba85\ud655\ud55c \ub179\ub294\uc810 \uc5c6\uc74c<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #ddd;padding:8px;\">\uc6a9\uc735 \uc628\ub3c4 \ubc94\uc704<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">220\u2013260 \u00b0C<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">\uc5f4\ud654 \ubc29\uc9c0\ub97c \uc704\ud574 280 \u00b0C\ub97c \ucd08\uacfc\ud558\uc9c0 \uc54a\ub3c4\ub85d \uc8fc\uc758<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #ddd;padding:8px;\">\uae08\ud615 \uc628\ub3c4 \ubc94\uc704<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">15\u201365 \u00b0C<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">\ub0ae\uc744\uc218\ub85d \ub354 \ud22c\uba85\ud568; \ub192\uc744\uc218\ub85d \uc751\ub825 \uac10\uc18c<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #ddd;padding:8px;\">\uc778\uc7a5 \uac15\ub3c4<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">50\u201355 MPa<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">ABS\uc640 \uc720\uc0ac\ud558\uba70, PC\ubcf4\ub2e4 \ub0ae\uc74c<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #ddd;padding:8px;\">\ud734\uc2dd \uc2dc \uc2e0\uc7a5<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">100\u2013150 %<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">\ub192\uc740 \uc5f0\uc131 \u2014 \ucde8\uc131 \ud30c\uad34\uc5d0 \uc800\ud56d\ud568<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #ddd;padding:8px;\">\uad74\uace1 \ud0c4\uc131 \uacc4\uc218<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">~2,100 MPa<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">\uad6c\uc870 \ubd80\ud488\uc5d0 \ucda9\ubd84\ud788 \uac15\ud568<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #ddd;padding:8px;\">\uc544\uc774\uc870\ub4dc \ub178\uce58 \ucda9\uaca9<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">~800 J\/m<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">\uc544\ud06c\ub9b4\ubcf4\ub2e4 \ud6e8\uc52c \uc6b0\uc218\ud568; PC\uc5d0 \uac00\uae4c\uc6c0<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #ddd;padding:8px;\">\ube5b \ud22c\uacfc<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">85\u201392 %<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">\uad11\ud559\uc801 \uc120\uba85\ub3c4\uc5d0 \uac00\uae4c\uc6c0<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #ddd;padding:8px;\">Moisture Absorption<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">0.2\u20130.3 %<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">\ub0ae\uc9c0\ub9cc \uc5ec\uc804\ud788 \uac74\uc870\uac00 \ud544\uc694\ud568<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\ub192\uc740 \uc5f0\uc2e0\uc728\uacfc \uc6b0\uc218\ud55c <a href=\"https:\/\/productcatalog.eastman.com\/tds\/ProdDatasheet.aspx?product=71040786&#038;pn=Eastar+676\">PETG \uc778\uc7a5 \uac15\ub3c4<\/a><sup id=\"fnref1:2\"><a href=\"#fn:2\" class=\"footnote-ref\">2<\/a><\/sup> (50\u201355 MPa)\ub294 PETG\ub97c \ub2e4\ub978 \ud22c\uba85 \ud50c\ub77c\uc2a4\ud2f1\uacfc \ucc28\ubcc4\ud654\ud558\ub294 \uc694\uc18c\uc785\ub2c8\ub2e4. \uc544\ud06c\ub9b4(PMMA)\uc740 \ub354 \ub9ce\uc740 \ube5b\uc744 \ud22c\uacfc\ud560 \uc218 \uc788\uc9c0\ub9cc, \ucda9\uaca9 \uc2dc \uade0\uc5f4\uc774 \uc0dd\uae41\ub2c8\ub2e4. \ud3f4\ub9ac\uce74\ubcf4\ub124\uc774\ud2b8\ub294 \ub354 \uac15\uc778\ud558\uc9c0\ub9cc \ube44\uc6a9\uc774 \ud6e8\uc52c \ub354 \ub9ce\uc774 \ub4e4\uace0 \uc218\ubd84 \ubc0f \ud654\ud559\uc801 \uacf5\uaca9\uc5d0 \ud6e8\uc52c \ub354 \ubbfc\uac10\ud569\ub2c8\ub2e4. PETG\ub294 \uc911\uac04\uc5d0 \uc704\uce58\ud558\uba70, \uc6b0\ub9ac\uc758 \uacbd\ud5d8\uc0c1 \uc2e4\uc81c \uc751\uc6a9 \ubd84\uc57c \ub300\ubd80\ubd84\uc740 \ubc14\ub85c \uc774 \uc911\uac04 \uc9c0\ub300\uc5d0 \ud574\ub2f9\ud569\ub2c8\ub2e4.<\/p>\n<h2>\uc0ac\ucd9c \uc131\ud615\uc744 \uc704\ud574 PETG\ub97c \uc5b4\ub5bb\uac8c \uc900\ube44\ud558\ub098\uc694?<\/h2>\n<p>PETG\ub294 \ud761\uc2b5\uc131\uc785\ub2c8\ub2e4 \u2014 \ub098\uc77c\ub860\uc774\ub098 \ud3f4\ub9ac\uce74\ubcf4\ub124\uc774\ud2b8\ub9cc\ud07c \uac15\ub825\ud558\uc9c0\ub294 \uc54a\uc9c0\ub9cc, \uac74\uc870\uae30\ub97c \uc0dd\ub7b5\ud558\uba74 \uc190\uc2e4\uc744 \uc785\uc744 \ub9cc\ud07c \ucda9\ubd84\ud569\ub2c8\ub2e4. \ubaa9\ud45c \uc218\ubd84 \ud568\ub7c9\uc740 \uc911\ub7c9 \uae30\uc900 0.02% \ubbf8\ub9cc\uc785\ub2c8\ub2e4. \uc6b0\ub9ac \uc791\uc5c5\uc7a5\uc5d0\uc11c\ub294 \uc81c\uc2b5 \ud638\ud37c \uac74\uc870\uae30\uc5d0\uc11c PETG\ub97c 65\u201375 \u00b0C\uc5d0\uc11c 4\u20136\uc2dc\uac04 \ub3d9\uc548 \uac74\uc870\ud558\uba70, \uc6b4\uc804 \uc911 \ub0b4\ub0b4 \ud638\ud37c\ub97c \ud574\ub2f9 \uc628\ub3c4\ub85c \uc720\uc9c0\ud569\ub2c8\ub2e4. <a href=\"https:\/\/help.autodesk.com\/cloudhelp\/2014\/ENU\/Inventor\/files\/GUID-5A90C4E9-4DEC-48A4-AC46-7F71B77253F2.htm\">PETG \uac74\uc870 \uc628\ub3c4<\/a><sup id=\"fnref1:3\"><a href=\"#fn:3\" class=\"footnote-ref\">3<\/a><\/sup> \ub9e4\uc6b0 \uc911\uc694\ud569\ub2c8\ub2e4 \u2014 \ub108\ubb34 \ub728\uac70\uc6b0\uba74 \ud3a0\ub9bf\uc774 \uc11c\ub85c \ub2ec\ub77c\ubd99\uace0, \ub108\ubb34 \ucc28\uac11\uc73c\uba74 \ubaa9\ud45c \uc218\ubd84 \uc218\uc900\uc5d0 \ub3c4\ub2ec\ud558\uc9c0 \ubabb\ud569\ub2c8\ub2e4.<\/p>\n<div class=\"claim claim-true\" style=\"background-color: #eff7ef; border-color: #eff7ef; color: #5a8a5a;\">\n<p><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20\" height=\"20\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"#16a34a\" stroke-width=\"2\"><path d=\"M9 16.17L4.83 12l-1.42 1.41L9 19 21 7l-1.41-1.41z\"\/><\/svg><b>&#8220;Undried PETG resin produces splay marks and reduced impact strength due to hydrolysis of the polymer backbone.&#8221;<\/b><span class=\"claim-true-or-false\">True<\/span><\/p>\n<p class=\"claim-explanation\">\uc0ac\uc2e4\uc785\ub2c8\ub2e4. \uc6a9\uc735\ubb3c \ub0b4\uc758 \uc218\ubd84\uc740 \uc99d\uae30 \uae30\ud3ec\ub97c \ubc1c\uc0dd\uc2dc\ucf1c \ud45c\uba74\uc5d0 \uc740\uc0c9 \uc904\ubb34\ub2ac\ub97c \ub9cc\ub4ed\ub2c8\ub2e4. \uac00\uc218\ubd84\ud574\ub294 \ub610\ud55c \uace0\ubd84\uc790 \uc0ac\uc2ac \ub0b4 \uc5d0\uc2a4\ud14c\ub974 \uacb0\ud569\uc744 \ub04a\uc5b4 \uc778\uc131\uacfc \uc5f0\uc2e0\uc728\uc744 \uc601\uad6c\uc801\uc73c\ub85c \uc800\ud558\uc2dc\ud0b5\ub2c8\ub2e4.<\/p>\n<\/div>\n<div class=\"claim claim-false\" style=\"background-color: #f7e8e8; border-color: #f7e8e8; color: #8a4a4a;\">\n<p><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20\" height=\"20\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"#dc2626\" stroke-width=\"2\"><line x1=\"18\" y1=\"6\" x2=\"6\" y2=\"18\"\/><line x1=\"6\" y1=\"6\" x2=\"18\" y2=\"18\"\/><\/svg><b>&#8220;PETG does not need drying before injection molding because its moisture absorption is very low.&#8221;<\/b><span class=\"claim-true-or-false\">False<\/span><\/p>\n<p class=\"claim-explanation\">\uac70\uc9d3\uc785\ub2c8\ub2e4. PETG\uac00 \ub098\uc77c\ub860\ubcf4\ub2e4 \uc218\ubd84\uc744 \ub35c \ud761\uc218\ud558\uc9c0\ub9cc, 0.02 % \uc774\uc0c1\uc758 \uc218\ubd84\uc740 \uc2a4\ud50c\ub808\uc774 \ub9c8\ud06c, \uae30\ud3ec \ubc0f \ucda9\uaca9 \uac15\ub3c4 \uc800\ud558\ub97c \uc720\ubc1c\ud569\ub2c8\ub2e4. \uc131\ud615 \uc804 \ud56d\uc0c1 PETG\ub97c 65\u201375 \u00b0C\uc5d0\uc11c 4\u20136\uc2dc\uac04 \uac74\uc870\ud558\uc138\uc694.<\/p>\n<\/div>\n<p>\uac74\uc870 \uacfc\uc815\uc744 \uac74\ub108\ub6f0\uac70\ub098 \ucd95\uc18c\ud560 \ub54c \ubc1c\uc0dd\ud558\ub294 \ud604\uc0c1\uc740 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4: \uc6a9\uc735\ubb3c \ub0b4\uc5d0\uc11c \uc99d\uae30\uac00 \ud33d\ucc3d\ud558\uc5ec \uc0dd\uae30\ub294 \uc2a4\ud50c\ub808\uc774 \ub9c8\ud06c(\ubd80\ud488 \ud45c\uba74\uc758 \uc740\uc0c9 \uc904\ubb34\ub2ac); \uace0\ubd84\uc790 \uace8\uaca9\uc758 \uc5d0\uc2a4\ud14c\ub974 \uacb0\ud569\uc744 \uac00\uc218\ubd84\ud574\uac00 \ub04a\uc5b4 \ucda9\uaca9 \uac15\ub3c4 \uc800\ud558; \ub450\uaebc\uc6b4 \ubd80\ubd84\uc758 \uae30\ud3ec\uc640 \uacf5\uadf9; \uc774\uc74c\uc810\uc758 \ucde8\uc131 \uc6a9\uc811\uc120; \uadf8\ub9ac\uace0 \uce58\uc218 \ubcc0\ub3d9\uacfc \ud568\uaed8 \uc0f7 \uac04 \ubb34\uac8c \ubd88\uc77c\uce58.<\/p>\n<p>\uac04\ud3b8\ud55c \ud604\uc7a5 \uac80\uc0ac \ubc29\ubc95: \ub178\uc990\uc5d0\uc11c \ud37c\uc9d5 \uc2dc \ud130\uc9c0\ub294 \uc18c\ub9ac\uac00 \ub098\uac70\ub098 \uac70\ud488\uc774 \ubcf4\uc774\uba74 PETG \uc7ac\ub8cc\uac00 \uc2b5\ud55c \uac83\uc785\ub2c8\ub2e4. \uc791\uc5c5\uc744 \uc911\uc9c0\ud558\uace0 \uac74\uc870\ub41c \uc7ac\ub8cc\ub85c \ub2e4\uc2dc \ub85c\ub529\ud55c \ud6c4 \ubc30\ub7f4\uc744 \ucca0\uc800\ud788 \ud37c\uc9d5\ud558\uc138\uc694. \uac74\uc870\uc5d0 \ud22c\uc790\ud558\ub294 \ube44\uc6a9\uc740 \ubd88\ub7c9\ud488 \ucc98\ub9ac \ube44\uc6a9\ubcf4\ub2e4 \ud56d\uc0c1 \uc800\ub834\ud569\ub2c8\ub2e4. \ucc29\uc0c9\uc81c\uc640 \ucca8\uac00\uc81c \ub18d\ucd95\ubb3c(\ub9c8\uc2a4\ud130\ubc30\uce58)\ub3c4 \uac74\uc870\ub418\uc5b4\uc57c \ud569\ub2c8\ub2e4 \u2014 PETG\ub294 \uac00\uacf5 \uc628\ub3c4\uc5d0\uc11c \uc0c9\uc0c1 \ud3a0\ub9bf \ub0b4 \uc794\ub958 \uc218\ubd84\uc774 \ub3d9\uc77c\ud55c \uacb0\ud568\uc744 \ubc1c\uc0dd\uc2dc\ud0a4\uae30 \ub54c\ubb38\uc785\ub2c8\ub2e4.<\/p>\n<figure style=\"text-align:center;margin:2em 0;\">\n<img fetchpriority=\"high\" decoding=\"async\" width=\"800\" height=\"457\" src=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2025\/11\/colorful-plastic-pellets.webp\" alt=\"Colorful plastic pellets for injection molding\" class=\"wp-image-51596 size-full\" style=\"max-width:100%;height:auto;\" srcset=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2025\/11\/colorful-plastic-pellets.webp 800w, https:\/\/zetarmold.com\/wp-content\/uploads\/2025\/11\/colorful-plastic-pellets-300x171.webp 300w, https:\/\/zetarmold.com\/wp-content\/uploads\/2025\/11\/colorful-plastic-pellets-768x439.webp 768w, https:\/\/zetarmold.com\/wp-content\/uploads\/2025\/11\/colorful-plastic-pellets-18x10.webp 18w, https:\/\/zetarmold.com\/wp-content\/uploads\/2025\/11\/colorful-plastic-pellets-600x343.webp 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption style=\"font-size:0.78em; color:#888; font-style:italic; margin-top:4px; text-align:center;\">\uac00\uacf5 \uc900\ube44\uac00 \ub41c PETG \ud3a0\ub9bf<\/figcaption><\/figure>\n<h2>PETG \uc0ac\ucd9c \uc131\ud615\uc758 \ucd5c\uc801 \ub9e4\uac1c\ubcc0\uc218\ub294 \ubb34\uc5c7\uc778\uac00\uc694?<\/h2>\n<p>PETG is one of the more forgiving materials to mold, which is part of why it is so popular. But &#8220;forgiving&#8221; does not mean you can ignore the fundamentals. Here are the parameters we tune on every PETG job, along with the ranges that work reliably across part geometries.<\/p>\n<table style=\"width:100%;border-collapse:collapse;margin:1.5em 0;\">\n<caption style=\"font-weight:bold;margin-bottom:0.5em;\">\uad8c\uc7a5 PETG \uc0ac\ucd9c \uc131\ud615 \ub9e4\uac1c\ubcc0\uc218<\/caption>\n<thead>\n<tr>\n<th style=\"border:1px solid #ddd;padding:8px;background:#f5f5f5;\">\ub9e4\uac1c\ubcc0\uc218<\/th>\n<th style=\"border:1px solid #ddd;padding:8px;background:#f5f5f5;\">\uad8c\uc7a5 \ubc94\uc704<\/th>\n<th style=\"border:1px solid #ddd;padding:8px;background:#f5f5f5;\">\ud301<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"border:1px solid #ddd;padding:8px;\">\ubc30\ub7f4 \ud6c4\ubd80 \uc601\uc5ed<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">210\u2013230 \u00b0C<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">\uc870\uae30 \uc6a9\uc735\uc744 \ubc29\uc9c0\ud558\ub824\uba74 \ub0ae\uac8c \uc720\uc9c0<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #ddd;padding:8px;\">\ubc30\ub7f4 \uc911\uac04 \uad6c\uc5ed<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">230\u2013250 \u00b0C<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">\uc8fc \uc6a9\uc735 \uc601\uc5ed<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #ddd;padding:8px;\">\ubc30\ub7f4 \uc804\uba74 \uc601\uc5ed \/ \ub178\uc990<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">240\u2013260 \u00b0C<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">280 \u00b0C\ub97c \ucd08\uacfc\ud558\uc9c0 \ub9c8\uc2ed\uc2dc\uc624<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #ddd;padding:8px;\">\uae08\ud615 \uc628\ub3c4<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">15\u201340 \u00b0C (\ud22c\uba85\ub3c4) \/ 40\u201365 \u00b0C (\uc751\ub825 \uc644\ud654)<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">\ub354 \ub0ae\uc740 \uc628\ub3c4 = \ub354 \ud22c\uba85\ud55c \ud45c\uba74<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #ddd;padding:8px;\">\uc0ac\ucd9c \uc18d\ub3c4<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">\uc911\uac04~\uace0\uc18d<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">\uc587\uc740 \ubcbd\uc5d0\uc11c \ud5e4\uc9c0\ud14c\uc774\uc158 \ub9c8\ud06c \ud53c\ud558\uae30<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #ddd;padding:8px;\">\uc720\uc9c0 \uc555\ub825<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">\uc0ac\ucd9c \uc555\ub825 40\u201370 %<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">\uac8c\uc774\ud2b8\uac00 \ub3d9\uacb0\ub420 \ub54c\uae4c\uc9c0 \ubcf4\uc555<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #ddd;padding:8px;\">\ubcf4\uc720 \uc2dc\uac04<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">3\u20138\ucd08 (\ubcbd \ub450\uaed8\uc5d0 \ub530\ub77c \ub2e4\ub984)<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">\uac8c\uc774\ud2b8 \uc2e4\ub9c1\uc774 \uc911\uc694\ud569\ub2c8\ub2e4<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #ddd;padding:8px;\">\ub0c9\uac01 \uc2dc\uac04<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">15\u201340\ucd08 (\ubcbd \ub450\uaed8\uc5d0 \ub530\ub77c \ub2e4\ub984)<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">\uade0\uc77c\ud55c \ubcbd = \uc9e7\uc740 \uc0ac\uc774\ud074 \uc2dc\uac04<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #ddd;padding:8px;\">\ubc30\uc555<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">5\u201310 bar<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">\ub0ae\uc74c\uc5d0\uc11c \uc911\uac04; \uacfc\ub3c4\ud55c \uc804\ub2e8\uc740 PETG\ub97c \ubd84\ud574\uc2dc\ud0b5\ub2c8\ub2e4<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #ddd;padding:8px;\">\ub098\uc0ac \uc18d\ub3c4<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">40\u201380 RPM<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">\uc18d\ub3c4\uac00 \ub0ae\uc744\uc218\ub85d \uc804\ub2e8 \uac00\uc5f4\uc774 \uac10\uc18c\ud569\ub2c8\ub2e4<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\uc2e4\uc6a9\uc801\uc778 \ud301 \ud558\ub098: PETG\ub294 \uc0c1\ub300\uc801\uc73c\ub85c \ub113\uc740 \uac00\uacf5 \uc708\ub3c4\uc6b0\ub97c \uac00\uc9c0\uace0 \uc788\uc9c0\ub9cc, \uadf8 \uc708\ub3c4\uc6b0\uc758 \uc591\uadf9\ub2e8\uc740 \uc11c\ub85c \ub2e4\ub978 \uacb0\uacfc\ub97c \ub9cc\ub4ed\ub2c8\ub2e4. \uc800\uc628 \uc601\uc5ed(220\u2013230 \u00b0C)\uc5d0\uc11c\ub294 \ud22c\uba85\ub3c4\uac00 \ud5a5\uc0c1\ub418\uace0 \ud669\ubcc0 \uc704\ud5d8\uc774 \uc904\uc5b4\ub4e4\uc9c0\ub9cc, \ubc15\ubcbd \ubd80\ubd84 \ucda9\uc804\uc5d0 \uc5b4\ub824\uc6c0\uc744 \uacaa\uc744 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uace0\uc628 \uc601\uc5ed(250\u2013260 \u00b0C)\uc5d0\uc11c\ub294 \uc720\ub3d9\uc131\uc774 \uadf9\uc801\uc73c\ub85c \uac1c\uc120\ub418\uc9c0\ub9cc, \uc7a5\uc2dc\uac04 \uccb4\ub958\ub294 \uc5f4\ubd84\ud574\ub97c \uc77c\uc73c\ucf1c \uc7ac\ub8cc\uac00 \ud669\ubcc0\ud558\uae30 \uc2dc\uc791\ud558\uace0 \ucda9\uaca9 \uac15\ub3c4\ub97c \uc783\uc2b5\ub2c8\ub2e4. \ub300\ubd80\ubd84\uc758 \ubd80\ud488\uc5d0\ub294 240\u2013250 \u00b0C\uac00 \ucd5c\uc801\uc758 \uc9c0\uc810\uc785\ub2c8\ub2e4.<\/p>\n<p>PETG\uc758 \uacbd\uc6b0 \uc0ac\ucd9c \uc18d\ub3c4\ub294 \ub9ce\uc740 \uc131\ud615\uc5c5\uc790\uac00 \uc0dd\uac01\ud558\ub294 \uac83\ubcf4\ub2e4 \ub354 \uc911\uc694\ud569\ub2c8\ub2e4. PETG\ub294 \ube44\uc815\uc9c8\uc774\uae30 \ub54c\ubb38\uc5d0 \ub0a0\uce74\ub85c\uc6b4 \uc6a9\uc735\uc810\uc774 \uc5c6\uc73c\uba70, \uc77c\uc815 \ubc94\uc704\uc5d0 \uac78\uccd0 \uc810\ucc28\uc801\uc73c\ub85c \uc5f0\ud654\ub429\ub2c8\ub2e4. \ube60\ub978 \uc0ac\ucd9c\uc740 \uc120\ub2e8\uc774 \uc5bc\uae30 \uc2dc\uc791\ud558\uae30 \uc804\uc5d0 \uc7ac\ub8cc\uac00 \uce90\ube44\ud2f0\ub97c \ud1b5\ud574 \uade0\uc77c\ud558\uac8c \ud750\ub974\ub3c4\ub85d \ub3d5\uc2b5\ub2c8\ub2e4. \uc587\uc740 \ubcbd \ubd80\ud488(1.5mm \ubbf8\ub9cc)\uc5d0\uc11c\ub294 \uc77c\ubc18\uc801\uc73c\ub85c \ucd5c\ub300 \uc0ac\ucd9c \uc18d\ub3c4\uc758 70\u201390%\ub85c \uc6b4\uc804\ud569\ub2c8\ub2e4. \ub450\uaebc\uc6b4 \ubd80\ud488\uc5d0\uc11c\ub294 \uc81c\ud305\uacfc \uacf5\uae30 \ud2b8\ub7a9\uc744 \ud53c\ud558\uae30 \uc704\ud574 40\u201360%\ub85c \uc18d\ub3c4\ub97c \ub2a6\ucda5\ub2c8\ub2e4.<\/p>\n<p>Holding pressure and time are where most PETG molding issues originate. PETG is a &#8220;soft&#8221; material at demolding temperature \u2014 it will warp, sink, or dimensionally shift if you release holding pressure before the gate freezes. A gate freeze study (weighing parts at progressively longer hold times until weight stabilizes) is worth doing once per mold. In our shop, we find that 4\u20136 seconds of hold time covers most PETG parts under 3 mm wall thickness.<\/p>\n<div class=\"claim claim-true\" style=\"background-color: #eff7ef; border-color: #eff7ef; color: #5a8a5a;\">\n<p><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20\" height=\"20\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"#16a34a\" stroke-width=\"2\"><path d=\"M9 16.17L4.83 12l-1.42 1.41L9 19 21 7l-1.41-1.41z\"\/><\/svg><b>&#8220;Running a gate freeze study is recommended for every new PETG mold to determine optimal holding time.&#8221;<\/b><span class=\"claim-true-or-false\">True<\/span><\/p>\n<p class=\"claim-explanation\">\uc0ac\uc2e4\uc785\ub2c8\ub2e4. \uac8c\uc774\ud2b8 \ub3d9\uacb0 \uc2dc\uac04\uc740 \ubcbd \ub450\uaed8, \uac8c\uc774\ud2b8 \ud06c\uae30 \ubc0f \uae08\ud615 \uc628\ub3c4\uc5d0 \ub530\ub77c \ub2e4\ub985\ub2c8\ub2e4. \uc810\uc9c4\uc801\uc73c\ub85c \ubcf4\uc555 \uc2dc\uac04\uc744 \ub298\ub824\uac00\uba70 \ubd80\ud488 \ubb34\uac8c\uac00 \uc548\uc815\ud654\ub420 \ub54c\uae4c\uc9c0 \ubb34\uac8c\ub97c \uce21\uc815\ud558\uba74 \uc77c\uad00\ub41c \ubd80\ud488 \ud488\uc9c8\uc5d0 \ud544\uc694\ud55c \ucd5c\uc18c \ubcf4\uc555 \uc2dc\uac04\uc744 \uc54c \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<\/div>\n<div class=\"claim claim-false\" style=\"background-color: #f7e8e8; border-color: #f7e8e8; color: #8a4a4a;\">\n<p><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20\" height=\"20\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"#dc2626\" stroke-width=\"2\"><line x1=\"18\" y1=\"6\" x2=\"6\" y2=\"18\"\/><line x1=\"6\" y1=\"6\" x2=\"18\" y2=\"18\"\/><\/svg><b>&#8220;PETG should always be molded at the highest possible melt temperature to ensure complete cavity fill.&#8221;<\/b><span class=\"claim-true-or-false\">False<\/span><\/p>\n<p class=\"claim-explanation\">\uac70\uc9d3\uc785\ub2c8\ub2e4. \ub354 \ub192\uc740 \uc6a9\uc735 \uc628\ub3c4\ub294 \uc720\ub3d9\uc131\uc744 \uac1c\uc120\uc2dc\ud0a4\uc9c0\ub9cc, 280 \u00b0C\ub97c \ucd08\uacfc\ud558\uba74 \uc5f4\ubd84\ud574, \ud669\ubcc0 \ubc0f \ucda9\uaca9 \uac15\ub3c4 \uc190\uc2e4\uc744 \ucd08\ub798\ud569\ub2c8\ub2e4. \uad8c\uc7a5 \ubc94\uc704\ub294 220\u2013260 \u00b0C\uc774\uba70, \ub300\ubd80\ubd84\uc758 \uc801\uc6a9 \uc0ac\ub840\uc5d0 \ucd5c\uc801\uc758 \uc628\ub3c4\ub294 240\u2013250 \u00b0C\uc785\ub2c8\ub2e4.<\/p>\n<\/div>\n<h2>PETG \ubd80\ud488\uc744 \uc704\ud55c \uae08\ud615\uc740 \uc5b4\ub5bb\uac8c \uc124\uacc4\ud574\uc57c \ud558\ub098\uc694?<\/h2>\n<p>PETG \uae08\ud615 \uc124\uacc4\ub294 \uade0\uc77c\ud55c 1-3 mm \ubcbd \ub450\uaed8, 2-3\ub3c4 \ub4dc\ub798\ud504\ud2b8 \uac01\ub3c4, \uae68\ub057\ud55c \uc774\ud615\uacfc \uad11\ud559\uc801 \uc120\uba85\ub3c4\ub97c \uc704\ud55c \uc800\uc804\ub2e8 \uac8c\uc774\ud2b8 \uc720\ud615\uc5d0 \uc758\ud574 \uc8fc\ub3c4\ub429\ub2c8\ub2e4.<\/p>\n<h3>\ubcbd \ub450\uaed8\uc640 \uc218\ucd95<\/h3>\n<p>\ubaa9\ud45c \ubcbd \ub450\uaed8\ub294 1.0\u20133.0 mm\ub85c \uac00\ub2a5\ud55c \ud55c \uade0\uc77c\ud558\uac8c \uc720\uc9c0\ud558\uc138\uc694. PETG\ub294 \uacb0\uc815\ud654\ub418\uc9c0 \uc54a\uc544 \ub098\uc77c\ub860\uacfc \uac19\uc740 \ubc18\uacb0\uc815\uc131 \uc7ac\ub8cc\ubcf4\ub2e4 \uc218\ucd95\uc774 \uc801\uc9c0\ub9cc \uc5ec\uc804\ud788 \uc218\ucd95\ud569\ub2c8\ub2e4(0.3\u20130.7 %). \ub450\uaed8\uac00 \uace0\ub974\uc9c0 \uc54a\uc73c\uba74 \uc218\ucd95 \ucc28\uc774\uac00 \ubc1c\uc0dd\ud558\uc5ec \uc2f1\ud06c \ub9c8\ud06c\uc640 \ub4a4\ud2c0\ub9bc\uc73c\ub85c \ub098\ud0c0\ub0a9\ub2c8\ub2e4. \uad6c\uc870\uc801 \uc774\uc720\ub85c \ub450\uaebc\uc6b4 \ubd80\ubd84\uc774 \ud544\uc694\ud558\ub2e4\uba74, \ub2e8\ub2e8\ud55c \ub369\uc5b4\ub9ac \ub300\uc2e0 \ub9ac\ube0c\ub85c \ucf54\uc5b4\ub97c \uc81c\uac70\ud558\ub294 \uac83\uc774 \ud56d\uc0c1 \ub354 \uc88b\uc2b5\ub2c8\ub2e4.<\/p>\n<h3>\uac8c\uc774\ud2b8 \uc124\uacc4 \ubc0f \ubc30\uce58<\/h3>\n<p>\ud22c\uba85 PETG \ubd80\ud488\uc758 \uacbd\uc6b0, \uac8c\uc774\ud2b8 \uc704\uce58\uc640 \uc720\ud615\uc774 \uad11\ud559\uc801 \ud488\uc9c8\uc5d0 \uc9c1\uc811\uc801\uc778 \uc601\ud5a5\uc744 \ubbf8\uce69\ub2c8\ub2e4. \uc5d0\uc9c0 \uac8c\uc774\ud2b8\uc640 \ud32c \uac8c\uc774\ud2b8\ub294 \uac00\uc7a5 \uc77c\ubc18\uc801\uc778 \uc120\ud0dd\uc785\ub2c8\ub2e4. \uc65c\ub0d0\ud558\uba74 \ub113\uace0 \ub0ae\uc740 \uc804\ub2e8 \uc9c4\uc785\uc810\uc744 \uc81c\uacf5\ud558\uc5ec \uc81c\ud305\uacfc \uc720\ub3d9 \ud754\uc801\uc744 \ucd5c\uc18c\ud654\ud558\uae30 \ub54c\ubb38\uc785\ub2c8\ub2e4. \uc11c\ube0c\uba38\ub9b0(\ud130\ub110) \uac8c\uc774\ud2b8\ub294 \uc18c\ud615 \ubd80\ud488\uc5d0 \uc801\ud569\ud558\uc9c0\ub9cc, \ud22c\uba85 \ubd80\ud488\uc5d0\uc11c \ubcf4\uc774\ub294 \uc794\uc5ec\ubb3c\uc744 \ub0a8\uae38 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uba87 \uadf8\ub7a8 \uc774\uc0c1\uc758 \ubd80\ud488\uc5d0\ub294 \ud540\ud3ec\uc778\ud2b8 \uac8c\uc774\ud2b8\ub97c \ud53c\ud558\uc2ed\uc2dc\uc624 \u2014 \uc791\uc740 \uc624\ub9ac\ud53c\uc2a4\ub97c \ud1b5\ud55c \ub192\uc740 \uc804\ub2e8\uc740 PETG\ub97c \ubd84\ud574\uc2dc\ud0a4\uace0 \uac8c\uc774\ud2b8 \uadfc\ucc98\uc5d0 \ud750\ub9bc\uc744 \uc0dd\uc131\ud569\ub2c8\ub2e4.<\/p>\n<p>\ud750\ub984 \uc804\uba74\uc774 \uce90\ube44\ud2f0\ub97c \ud1b5\ud574 \uade0\uc77c\ud558\uac8c \uc774\ub3d9\ud558\ub3c4\ub85d \uac8c\uc774\ud2b8\ub97c \ubc30\uce58\ud558\uc138\uc694. \ud750\ub984 \uacbd\ub85c\uac00 \uace0\ub974\uc9c0 \uc54a\uc73c\uba74 \ud22c\uba85 \uc7ac\ub8cc\uc5d0\uc11c \uc6a9\uc811\uc120\uacfc \ud750\ub984 \ub9c8\ud06c\uac00 \ubcf4\uc785\ub2c8\ub2e4. \uad11\ud559\uc801 \ud488\uc9c8\uc774 \uc911\uc694\ud55c PETG \ubd80\ud488\uc758 \uacbd\uc6b0, \uae08\ud615 \uc81c\uc791 \uc804 Moldflow \uc2dc\ubbac\ub808\uc774\uc158\uc740 \uac00\uce58 \uc788\ub294 \ud22c\uc790\uc785\ub2c8\ub2e4.<\/p>\n<h3>\ub4dc\ub798\ud504\ud2b8 \uac01\ub3c4\uc640 \ud45c\uba74 \ub9c8\ubb34\ub9ac<\/h3>\n<p>\ud45c\uc900 \ub4dc\ub798\ud504\ud2b8\ub294 \uce21\uba74\ub2f9 1\u20132\u00b0\uc774\uc9c0\ub9cc, PETG\ub294 \uc774\uc81d\uc158 \uc628\ub3c4\uc5d0\uc11c \uc7ac\ub8cc\uac00 \uc0c1\ub300\uc801\uc73c\ub85c \ubd80\ub4dc\ub7ec\uc6b0\ubbc0\ub85c \uae4a\uc740 \ub4dc\ub85c\uc6b0 \uc2dc \uc57d\uac04 \ub354 \ud070 \ub4dc\ub798\ud504\ud2b8(2\u20133\u00b0)\uac00 \uc720\ub9ac\ud569\ub2c8\ub2e4. \ub4dc\ub798\ud504\ud2b8\uac00 \ubd88\ucda9\ubd84\ud558\uba74 \ud22c\uba85 \ubd80\ud488\uc5d0\uc11c \uc989\uc2dc \ub4dc\ub798\uadf8 \ub9c8\ud06c\uac00 \ubcf4\uc785\ub2c8\ub2e4. \ucd5c\uc801\uc758 \uad11\ud559\uc801 \uc120\uba85\ub3c4\ub97c \uc704\ud574 \ucf54\uc5b4\uc640 \uce90\ube44\ud2f0 \ud45c\uba74\uc744 \ubbf8\ub7ec \ub9c8\uac10(SPI A-2 \uc774\uc0c1)\uc73c\ub85c \uc5f0\ub9c8\ud558\uc138\uc694 \u2014 PETG\ub294 \uae08\ud615 \ud45c\uba74 \uc9c8\uac10\uc744 \ucda9\uc2e4\ud788 \ubcf5\uc81c\ud569\ub2c8\ub2e4.<\/p>\n<figure style=\"text-align:center;margin:2em 0;\">\n<img decoding=\"async\" width=\"800\" height=\"457\" src=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2026\/04\/injection-molding-draft-angle-diagram-800x457-1.jpg\" alt=\"Injection molding draft angle diagram showing mold design dimensions for PETG parts\" class=\"wp-image-53346 size-full\" style=\"max-width:100%;height:auto;\" srcset=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2026\/04\/injection-molding-draft-angle-diagram-800x457-1.jpg 800w, https:\/\/zetarmold.com\/wp-content\/uploads\/2026\/04\/injection-molding-draft-angle-diagram-800x457-1-300x171.jpg 300w, https:\/\/zetarmold.com\/wp-content\/uploads\/2026\/04\/injection-molding-draft-angle-diagram-800x457-1-768x439.jpg 768w, https:\/\/zetarmold.com\/wp-content\/uploads\/2026\/04\/injection-molding-draft-angle-diagram-800x457-1-18x10.jpg 18w, https:\/\/zetarmold.com\/wp-content\/uploads\/2026\/04\/injection-molding-draft-angle-diagram-800x457-1-600x343.jpg 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption style=\"font-size:0.78em; color:#888; font-style:italic; margin-top:4px; text-align:center;\">PETG\uc6a9 \ub4dc\ub798\ud504\ud2b8 \uac01\ub3c4 \uc124\uacc4<\/figcaption><\/figure>\n<h3>\ubc30\uae30<\/h3>\n<p>PETG\ub294 \uc131\ud615 \uc911\uc5d0 (PVC\ub098 \uc544\uc138\ud0c8\uacfc \ub2ec\ub9ac) \uacf5\uaca9\uc801\uc778 \uac00\uc2a4\ub97c \ubc29\ucd9c\ud558\uc9c0 \uc54a\uc9c0\ub9cc, \uc801\uc808\ud55c \ubc30\uae30\ub294 \uc5ec\uc804\ud788 \ud544\uc218\uc801\uc785\ub2c8\ub2e4. \uac07\ud78c \uacf5\uae30\ub294 \ubc88(\ubc84\ub2dd)\uacfc \ub2e8\uc0ac(\uc1fc\ud2b8\uc0f7)\ub97c \uc720\ubc1c\ud569\ub2c8\ub2e4. 0.01\u20130.02 mm\uc758 \ud45c\uc900 \ubc30\uae30 \uae4a\uc774\uba74 \ucda9\ubd84\ud569\ub2c8\ub2e4. \ubcf5\uc7a1\ud55c \ud615\uc0c1\uc758 \ubd80\ud488\uc758 \uacbd\uc6b0, \uc720\ub3d9 \uacbd\ub85c \ub05d\ub2e8\uacfc \ub9c9\ud78c \ud3ec\ucf13 \ubd80\ubd84\uc5d0 \ubc30\uae30\ub97c \ucd94\uac00\ud558\uc138\uc694.<\/p>\n<h2>PETG \uc0ac\ucd9c \uc131\ud615\uc758 \uc77c\ubc18\uc801\uc778 \uacb0\ud568\uacfc \ud574\uacb0\ucc45\uc740 \ubb34\uc5c7\uc778\uac00\uc694?<\/h2>\n<p>PETG\uc758 \uc77c\ubc18\uc801\uc778 \uacb0\ud568\uc5d0\ub294 \uc2a4\ud504\ub808\uc774 \ub9c8\ud06c, \ud750\ub9bc, \uc2f1\ud06c \ub9c8\ud06c, \ub4a4\ud2c0\ub9bc\uc774 \ud3ec\ud568\ub429\ub2c8\ub2e4. \ub300\ubd80\ubd84\uc740 \uc801\uc808\ud55c \uac74\uc870, \uac8c\uc774\ud2b8 \uc124\uacc4 \ubc0f \ubcf4\uc555\uc73c\ub85c \uc608\ubc29 \uac00\ub2a5\ud569\ub2c8\ub2e4. \uc88b\uc740 \ub9e4\uac1c\ubcc0\uc218\ub97c \uc124\uc815\ud558\ub354\ub77c\ub3c4 PETG\ub294 \uace0\uc720\ud55c \ud2b9\uc131\uc744 \uac00\uc9c0\uace0 \uc788\uc2b5\ub2c8\ub2e4. \ub2e4\uc74c\uc740 \uc0dd\uc0b0 \ud604\uc7a5\uc5d0\uc11c \uac00\uc7a5 \uc790\uc8fc \uc811\ud558\ub294 \uacb0\ud568\uacfc \uc2e4\uc81c \ud6a8\uacfc\uac00 \uc788\ub294 \ud574\uacb0 \ubc29\ubc95\uc785\ub2c8\ub2e4.<\/p>\n<h3>\uc2a4\ud50c\ub808\uc774 \uc790\uad6d (\uc2e4\ubc84 \uc904\ubb34\ub2ac)<\/h3>\n<p>\uc6d0\uc778: \uc218\uc9c0 \ub0b4 \uc218\ubd84. \uc774\ub294 PETG\uc758 \uac00\uc7a5 \ud070 \ubb38\uc81c\uc785\ub2c8\ub2e4. \uc18c\ub7c9\uc758 \uc218\ubd84\uc870\ucc28\ub3c4 \uc99d\uae30 \uae30\ud3ec\ub97c \uc0dd\uc131\ud558\uc5ec \ud750\ub984 \uc804\uba74\uc5d0\uc11c \ud130\uc9c0\uba70, \ubd80\ud488 \ud45c\uba74\uc5d0 \uc740\uc0c9 \uc904\ubb34\ub2ac\ub97c \ub0a8\uae41\ub2c8\ub2e4. \ud574\uacb0\ucc45\uc740 \uac04\ub2e8\ud569\ub2c8\ub2e4: \uac74\uc870\uae30 \uc628\ub3c4\uc640 \uc2dc\uac04\uc744 \ud655\uc778\ud558\uc2ed\uc2dc\uc624. \uac74\uc870 \uacf5\uae30\uc758 \uc774\uc2ac\uc810\uc774 -20 \u00b0C \ubbf8\ub9cc\uc778\uc9c0 \ud655\uc778\ud558\uc2ed\uc2dc\uc624. \uc7ac\uc0dd \uc6d0\ub8cc\ub97c \uc0ac\uc6a9\ud558\ub294 \uacbd\uc6b0 \ubcc4\ub3c4\ub85c \uc608\ube44 \uac74\uc870\ud558\uc2ed\uc2dc\uc624 \u2014 \uc7ac\uc0dd \uc6d0\ub8cc\ub294 \ud45c\uba74\uc801\uc774 \ub354 \ub113\uc5b4 \uc21c\uc218 \ud3a0\ub9bf\ubcf4\ub2e4 \uc218\ubd84\uc744 \ub354 \ube68\ub9ac \ud761\uc218\ud569\ub2c8\ub2e4.<\/p>\n<h3>\ud750\ub9bc \ub610\ub294 \ud0c1\ud568<\/h3>\n<p>\uc6d0\uc778: \uc791\uc740 \uac8c\uc774\ud2b8\ub97c \ud1b5\ud55c \uacfc\ub3c4\ud55c \uc0ac\ucd9c \uc18d\ub3c4\ub85c \uc778\ud55c \uc804\ub2e8 \uc751\ub825, \uc624\uc5fc, \ub610\ub294 \uc644\uc804\ud55c \uade0\uc9c8\ud654\ub97c \uc704\ud55c \uc6a9\uc735 \uc628\ub3c4\uac00 \ub108\ubb34 \ub0ae\uc74c. \ud574\uacb0\ucc45: \uac8c\uc774\ud2b8\ub97c \uc57d\uac04 \uc5f4\uace0, \uc0ac\ucd9c \uc18d\ub3c4\ub97c \uc904\uc774\uba70, \ubc30\ub7f4 \uc628\ub3c4 \ud504\ub85c\ud30c\uc77c\uc744 \uc801\uc808\ud788 \uc124\uc815\ud558\uc2ed\uc2dc\uc624. \ub610\ud55c \ud638\ud37c \ub0b4 \uc624\uc5fc\uc744 \ud655\uc778\ud558\uc2ed\uc2dc\uc624 \u2014 \ub2e4\ub978 \uc218\uc9c0(\ud2b9\ud788 \uacb0\uc815\uc131 \ubb3c\uc9c8)\uc758 \ubbf8\ub7c9\uc774\ub77c\ub3c4 PETG\uc5d0 \ud750\ub9bc \ud604\uc0c1\uc744 \uc720\ubc1c\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<h3>\uc2f1\ud06c \ub9c8\ud06c<\/h3>\n<p>\uc6d0\uc778: \ubcf4\uc555 \ub610\ub294 \ubcf4\uc555 \uc2dc\uac04 \ubd80\uc871, \ub610\ub294 \ubcbd \ub450\uaed8 \ubcc0\ub3d9\uc774 \uacfc\ub3c4\ud568. PETG\ub294 \ube44\uc815\uc9c8 \uad6c\uc870\ub85c \uc218\ucd95\ub960\uc774 \uc0c1\ub300\uc801\uc73c\ub85c \ub0ae\uc9c0\ub9cc \ub450\uaebc\uc6b4 \ub2e8\uba74\uc740 \uc801\uc808\ud558\uac8c \uc555\ucd95\ub418\uc9c0 \uc54a\uc73c\uba74 \uc5ec\uc804\ud788 \ud568\ubab0\uc774 \ubc1c\uc0dd\ud569\ub2c8\ub2e4. \ud574\uacb0\ucc45: \uac8c\uc774\ud2b8\uac00 \ub3d9\uacb0\ub420 \ub54c\uae4c\uc9c0 \ubcf4\uc555\uc744 \ub192\uc774\uace0 \ubcf4\uc555 \uc2dc\uac04\uc744 \uc5f0\uc7a5\ud558\uc2ed\uc2dc\uc624. \ub450\uaebc\uc6b4 \ub2e8\uba74\uc740 \ucf54\uc5b4\ub9c1 \ub9ac\ube0c\ub85c \uc7ac\uc124\uacc4\ud558\uc2ed\uc2dc\uc624. \uc801\uc808\ud558\uac8c \uc555\ucd95\ub41c <a href=\"https:\/\/zetarmold.com\/ko\/%ec%82%ac%ec%b6%9c-%ea%b8%88%ed%98%95-%ec%99%84%eb%b2%bd-%ea%b0%80%ec%9d%b4%eb%93%9c\/\">\uc0ac\ucd9c \uae08\ud615<\/a> \uce90\ube44\ud2f0\ub294 \ucd5c\uc18c\ud55c\uc758 \uc2f1\ud06c \ub9c8\ud06c\ub85c \ubd80\ud488\uc744 \uc0dd\uc0b0\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n<div class=\"claim claim-true\" style=\"background-color: #eff7ef; border-color: #eff7ef; color: #5a8a5a;\">\n<p><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20\" height=\"20\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"#16a34a\" stroke-width=\"2\"><path d=\"M9 16.17L4.83 12l-1.42 1.41L9 19 21 7l-1.41-1.41z\"\/><\/svg><b>&#8220;PETG&#8217;s amorphous structure means it has lower and more uniform shrinkage compared to semi-crystalline plastics like nylon or POM.&#8221;<\/b><span class=\"claim-true-or-false\">True<\/span><\/p>\n<p class=\"claim-explanation\">\uc0ac\uc2e4\uc785\ub2c8\ub2e4. PETG\uc640 \uac19\uc740 \ube44\uc815\uc9c8 \uc7ac\ub8cc\ub294 \ub4f1\ubc29\uc131 \uc218\ucd95(0.3\u20130.7%)\uc744 \ubcf4\uc774\ub294 \ubc18\uba74, \ubc18\uacb0\uc815\uc131 \uc7ac\ub8cc\ub294 1\u20132.5%\uc758 \uc218\ucd95\uacfc \ud568\uaed8 \uc0c1\ub2f9\ud55c \ubc29\ud5a5\uc801 \ubcc0\uc774\ub97c \ubcf4\uc77c \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub85c \uc778\ud574 PETG\ub294 \uc815\ubc00\ud55c \uacf5\ucc28\ub85c \uc131\ud615\ud558\uae30\uac00 \ub354 \uc27d\uc2b5\ub2c8\ub2e4.<\/p>\n<\/div>\n<div class=\"claim claim-false\" style=\"background-color: #f7e8e8; border-color: #f7e8e8; color: #8a4a4a;\">\n<p><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20\" height=\"20\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"#dc2626\" stroke-width=\"2\"><line x1=\"18\" y1=\"6\" x2=\"6\" y2=\"18\"\/><line x1=\"6\" y1=\"6\" x2=\"18\" y2=\"18\"\/><\/svg><b>&#8220;Sink marks in PETG parts can be eliminated by simply reducing the mold temperature.&#8221;<\/b><span class=\"claim-true-or-false\">False<\/span><\/p>\n<p class=\"claim-explanation\">\uac70\uc9d3. \uae08\ud615 \uc628\ub3c4\ub294 \ud45c\uba74 \ub9c8\uac10\uc5d0 \uc601\ud5a5\uc744 \ubbf8\uce58\uc9c0\ub9cc, \ud568\ubab0 \uc790\uad6d\uc740 \uc8fc\ub85c \ubcf4\uc555 \ubd80\uc871 \ub610\ub294 \ub0c9\uac01 \uc911 \ubd88\uade0\uc77c\ud558\uac8c \uc218\ucd95\ud558\ub294 \ub450\uaebc\uc6b4 \ubcbd \ub2e8\uba74\uc5d0 \uc758\ud574 \ubc1c\uc0dd\ud569\ub2c8\ub2e4. \ud574\uacb0\ucc45\uc740 \ubcf4\uc555 \uc99d\uac00, \ubcf4\uc555 \uc2dc\uac04 \uc5f0\uc7a5, \uadf8\ub9ac\uace0 \ub450\uaebc\uc6b4 \ub2e8\uba74\uc744 \ucf54\uc5b4\ub9c1\uc73c\ub85c \uc7ac\uc124\uacc4\ud558\ub294 \uac83\uc744 \ud3ec\ud568\ud569\ub2c8\ub2e4.<\/p>\n<\/div>\n<h3>\ud728 \ubc0f \uc81c\ud305<\/h3>\n<p>Warpage is caused by uneven cooling or differential shrinkage between thick and thin sections. PETG&#8217;s low shrinkage helps, but asymmetrical wall thickness or uneven mold cooling will still cause warp. Ensure uniform cooling channel layout, use mold temperature controllers on both halves, and consider running a slightly higher mold temperature (50\u201365 \u00b0C) for parts with unavoidable thickness variation.<\/p>\n<p>\uc81c\ud305\uc740 \uc6a9\uc735 \ud750\ub984\uc774 \uc81c\ud55c\uc801\uc778 \uac8c\uc774\ud2b8\ub97c \ud1b5\ud574 \ub108\ubb34 \ube60\ub974\uac8c \uce90\ube44\ud2f0\ub85c \ub4e4\uc5b4\uac00 \ubcbd\uba74 \uc811\ucd09 \uc5c6\uc774 \uc774\ub3d9\ud560 \ub54c \ubc1c\uc0dd\ud569\ub2c8\ub2e4. \uc774\ub294 \uce90\ube44\ud2f0\ub97c \uac00\ub85c\uc9c8\ub7ec \ubc40\ucc98\ub7fc \uc6c0\uc9c1\uc774\uba70 \ubc8c\ub808 \ubaa8\uc591\uc758 \ud45c\uba74 \ub9c8\ud06c\ub97c \ub9cc\ub4ed\ub2c8\ub2e4. \ud574\uacb0 \ubc29\ubc95: \ucd08\uae30 \ucda9\uc804 \ub2e8\uacc4\uc5d0\uc11c \uc0ac\ucd9c \uc18d\ub3c4\ub97c \uc904\uc774\uace0, \ud32c \uac8c\uc774\ud2b8 \ub610\ub294 \ud0ed \uac8c\uc774\ud2b8\ub85c \uc804\ud658\ud558\uc5ec \uc720\uc785 \ud750\ub984\uc744 \ubd84\uc0b0\uc2dc\ud0a4\uba70, \uc6a9\uc735\ubb3c\uc774 \uc720\uc785 \uc989\uc2dc \ubcbd\uba74\uc774\ub098 \ucf54\uc5b4 \ud540\uc5d0 \ucda9\ub3cc\ud558\ub3c4\ub85d \uac8c\uc774\ud2b8 \uc704\uce58\ub97c \uc870\uc815\ud569\ub2c8\ub2e4.<\/p>\n<figure style=\"text-align:center;margin:2em 0;\">\n<img decoding=\"async\" width=\"800\" height=\"457\" src=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2025\/11\/injection-molding-defects-guide.webp\" alt=\"Visual guide to common injection molding defects\" class=\"wp-image-51585 size-full\" style=\"max-width:100%;height:auto;\" srcset=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2025\/11\/injection-molding-defects-guide.webp 800w, https:\/\/zetarmold.com\/wp-content\/uploads\/2025\/11\/injection-molding-defects-guide-300x171.webp 300w, https:\/\/zetarmold.com\/wp-content\/uploads\/2025\/11\/injection-molding-defects-guide-768x439.webp 768w, https:\/\/zetarmold.com\/wp-content\/uploads\/2025\/11\/injection-molding-defects-guide-18x10.webp 18w, https:\/\/zetarmold.com\/wp-content\/uploads\/2025\/11\/injection-molding-defects-guide-600x343.webp 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption style=\"font-size:0.78em; color:#888; font-style:italic; margin-top:4px; text-align:center;\">\uc77c\ubc18\uc801\uc778 PETG \uc131\ud615 \uacb0\ud568<\/figcaption><\/figure>\n<h2>\uc5b4\ub5a4 \uc0b0\uc5c5\uacfc \uc751\uc6a9 \ubd84\uc57c\uc5d0\uc11c PETG \uc0ac\ucd9c \uc131\ud615\uc744 \uc0ac\uc6a9\ud558\ub098\uc694?<\/h2>\n<p>PETG\ub294 \uc8fc\ub85c \ud22c\uba85\ub3c4\uc640 \uac15\uc778\uc131\uc774 \uc911\uc694\ud55c \uc758\ub8cc \uae30\uae30, \uc2dd\ud488 \ud3ec\uc7a5, \uc18c\ube44\uc790 \uac00\uc804 \ubc0f \uc0b0\uc5c5\uc6a9 \ubcf4\ud638 \uc7a5\uce58\uc5d0 \uc0ac\uc6a9\ub429\ub2c8\ub2e4. \ud22c\uba85\ub3c4, \uac15\uc778\uc131, \ub0b4\ud654\ud559\uc131 \ubc0f \uaddc\uc81c \uc801\ud569\uc131\uc744 \uacb0\ud569\ud55c \ud2b9\uc131\uc73c\ub85c \uc778\ud574 \uc5ec\ub7ec \uae4c\ub2e4\ub85c\uc6b4 \uc0b0\uc5c5 \ubd84\uc57c\uc5d0\uc11c \uc120\ud638\ub418\ub294 \uc18c\uc7ac\uc785\ub2c8\ub2e4.<\/p>\n<h3>\uc758\ub8cc \ubc0f \ud5ec\uc2a4\ucf00\uc5b4<\/h3>\n<p>PETG\ub294 \uc758\ub8cc \uae30\uae30 \ud558\uc6b0\uc9d5, \uc720\uccb4 \ucc98\ub9ac \ubd80\ud488, \uc9c4\ub2e8 \uc7a5\ube44 \ucee4\ubc84 \ubc0f \ube14\ub9ac\uc2a4\ud130 \ud3ec\uc7a5\uc5d0 \ub110\ub9ac \uc0ac\uc6a9\ub429\ub2c8\ub2e4. \ud22c\uba85\uc131\uc73c\ub85c \uc720\uccb4 \uc218\uc900\uacfc \uae30\uae30 \uc0c1\ud0dc\ub97c \uc721\uc548\uc73c\ub85c \ud655\uc778\ud560 \uc218 \uc788\uc73c\uba70, \ub0b4\ucda9\uaca9\uc131\uc740 \uc544\ud06c\ub9b4\uc774 \uae68\uc9c8 \uc218 \uc788\ub294 \ub099\ud558 \ubc0f \ucda9\uaca9\uc744 \uacac\ub51c \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ub9ce\uc740 PETG \ub4f1\uae09\uc774 \uc758\ub8cc \uae30\uae30 \uc801\uc6a9\uc744 \uc704\ud55c USP Class VI \ubc0f ISO 10993 \uc0dd\uccb4 \uc801\ud569\uc131 \uc694\uad6c \uc0ac\ud56d\uc744 \ucda9\uc871\ud569\ub2c8\ub2e4. \uc758\ub8cc \uace0\uac1d\uc744 \uc704\ud55c PETG \uac00\uacf5 \uacbd\ud5d8\uc0c1, \uad11\ud559\uc801 \ud22c\uba85\uc131\uacfc \uba78\uade0 \ud638\ud658\uc131(\uc5d0\ud2f8\ub80c \uc625\uc0ac\uc774\ub4dc \ubc0f \uac10\ub9c8 \uba78\uade0\uacfc \ud638\ud658)\uc758 \uc870\ud569\uc740 \ud22c\uba85 \uc758\ub8cc \uc7a5\ube44 \uc678\uad00\uc758 \uae30\ubcf8 \uc120\ud0dd\uc774 \ub418\uac8c \ud569\ub2c8\ub2e4.<\/p>\n<h3>\uc2dd\ud488 \ubc0f \uc74c\ub8cc \ud3ec\uc7a5<\/h3>\n<p>FDA-compliant PETG grades are used for clear food containers, beverage bottles, deli trays, and cosmetic packaging. The material&#8217;s chemical resistance handles oils and acids without stress cracking, and its clarity drives shelf appeal. Unlike PET, PETG can be thermoformed and injection molded without crystallization, which simplifies processing for packaging manufacturers.<\/p>\n<h3>\uc18c\ube44\uc790 \uac00\uc804 \ubc0f \uc0b0\uc5c5\uc6a9<\/h3>\n<p>\ub514\uc2a4\ud50c\ub808\uc774 \ucc3d, LED \uc870\uba85 \ud655\uc0b0\ud310, \ubcf4\ud638 \ucee4\ubc84, \uc6e8\uc5b4\ub7ec\ube14 \ubc0f \uac00\uc81c\ud2b8\uc6a9 \ud22c\uba85 \ud558\uc6b0\uc9d5 \ubaa8\ub450 PETG\ub97c \uc0ac\uc6a9\ud569\ub2c8\ub2e4. \uc774\ub294 \ub354 \ub0ae\uc740 \ube44\uc6a9\uc73c\ub85c PC\uc758 \uad11\ud559\uc801 \uc120\uba85\ub3c4\ub97c \uc81c\uacf5\ud558\uba70, \uc801\uc808\ud788 \uc548\uc815\ud654\ub41c \uacbd\uc6b0 UV \ub178\ucd9c\uc5d0\uc11c\ub3c4 \ube60\ub974\uac8c \ud669\ubcc0\ud558\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4. \uc0b0\uc5c5\uc6a9 \uc751\uc6a9 \ubd84\uc57c\uc5d0\ub294 \uc18c\ub9e4 \uc9c4\uc5f4 \uc7a5\uce58, \uac04\ud310, \uac00\ub4dc, \ucda9\uaca9 \uc800\ud56d\uc131\uc73c\ub85c \uc778\ud574 \ud63c\uc7a1\ud55c \ud658\uacbd\uc5d0\uc11c \uc544\ud06c\ub9b4\ubcf4\ub2e4 PETG\uac00 \uc120\ud638\ub418\ub294 \uba38\uc2e0 \ube44\uc804 \ucc3d \ub4f1\uc774 \ud3ec\ud568\ub429\ub2c8\ub2e4.<\/p>\n<h2>PETG \ub300 \ub2e4\ub978 \ud22c\uba85 \ud50c\ub77c\uc2a4\ud2f1 \u2014 \uc5b4\ub5bb\uac8c \ube44\uad50\ub418\ub098\uc694?<\/h2>\n<p>PETG, \ud3f4\ub9ac\uce74\ubcf4\ub124\uc774\ud2b8, \uc544\ud06c\ub9b4(PMMA), \ud22c\uba85 ABS \uc911 \uc120\ud0dd\uc740 \ud22c\uba85\ub3c4, \uac15\uc778\uc131, \ube44\uc6a9, \uac00\uacf5 \uc694\uad6c \uc0ac\ud56d\uc758 \uade0\ud615\uc744 \ub9de\ucd94\ub294 \ubb38\uc81c\uc785\ub2c8\ub2e4. \ub2e4\uc74c\uc740 \uc774\ub4e4 \uc18c\uc7ac\uc758 \uc9c1\uc811\uc801\uc778 \ube44\uad50\uc785\ub2c8\ub2e4.<\/p>\n<table style=\"width:100%;border-collapse:collapse;margin:1.5em 0;\">\n<caption style=\"font-weight:bold;margin-bottom:0.5em;\">\uc0ac\ucd9c \uc131\ud615\uc6a9 PETG \ub300 \ub2e4\ub978 \ud22c\uba85 \uc5f4\uac00\uc18c\uc131 \uc218\uc9c0 \ube44\uad50<\/caption>\n<thead>\n<tr>\n<th style=\"border:1px solid #ddd;padding:8px;background:#f5f5f5;\">\uc18d\uc131<\/th>\n<th style=\"border:1px solid #ddd;padding:8px;background:#f5f5f5;\">PETG<\/th>\n<th style=\"border:1px solid #ddd;padding:8px;background:#f5f5f5;\">\ud3f4\ub9ac\uce74\ubcf4\ub124\uc774\ud2b8(PC)<\/th>\n<th style=\"border:1px solid #ddd;padding:8px;background:#f5f5f5;\">\uc544\ud06c\ub9b4(PMMA)<\/th>\n<th style=\"border:1px solid #ddd;padding:8px;background:#f5f5f5;\">\ud22c\uba85 ABS<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"border:1px solid #ddd;padding:8px;\">\ube5b \ud22c\uacfc<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">85\u201392 %<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">88\u201391%<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">92 %<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">75\u201385%<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #ddd;padding:8px;\">Impact Strength (Izod)<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">~800 J\/m<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">~850 J\/m<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">~20 J\/m<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">~300 J\/m<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #ddd;padding:8px;\">Tg<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">~88 \u00b0C<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">~147 \u00b0C<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">~105 \u00b0C<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">~105 \u00b0C<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #ddd;padding:8px;\">\uac00\uacf5 \uc628\ub3c4<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">220\u2013260 \u00b0C<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">280\u2013320 \u00b0C<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">200\u2013250 \u00b0C<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">220\u2013260 \u00b0C<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #ddd;padding:8px;\">\uc2b5\uae30 \ubbfc\uac10\uc131<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">\ubcf4\ud1b5<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">\ub192\uc74c<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">\ub0ae\uc74c<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">\ubcf4\ud1b5<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #ddd;padding:8px;\">\ub0b4\ud654\ud559\uc131<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">Good<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">\ubd88\ub7c9(\uade0\uc5f4 \ubc1c\uc0dd)<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">Poor<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">\ubcf4\ud1b5<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #ddd;padding:8px;\">Cost (relative)<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">$$<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">$$$<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">$<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">$$<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #ddd;padding:8px;\">FDA \uc801\ud569\uc131<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">\uc608(\ub2e4\uc591\ud55c \ub4f1\uae09 \uc874\uc7ac)<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">\uc77c\ubd80 \ub4f1\uae09<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">\uc77c\ubd80 \ub4f1\uae09<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">\uc544\ub2c8\uc694<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<figure style=\"text-align:center;margin:2em 0;\">\n<img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"457\" src=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2026\/03\/thin-wall-molded-plastic-part.jpg\" alt=\"Thin-wall molded plastic part for transparent applications\" class=\"wp-image-52661 size-full\" style=\"max-width:100%;height:auto;\" srcset=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2026\/03\/thin-wall-molded-plastic-part.jpg 800w, https:\/\/zetarmold.com\/wp-content\/uploads\/2026\/03\/thin-wall-molded-plastic-part-300x171.jpg 300w, https:\/\/zetarmold.com\/wp-content\/uploads\/2026\/03\/thin-wall-molded-plastic-part-768x439.jpg 768w, https:\/\/zetarmold.com\/wp-content\/uploads\/2026\/03\/thin-wall-molded-plastic-part-18x10.jpg 18w, https:\/\/zetarmold.com\/wp-content\/uploads\/2026\/03\/thin-wall-molded-plastic-part-600x343.jpg 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption style=\"font-size:0.78em; color:#888; font-style:italic; margin-top:4px; text-align:center;\">\uc587\uc740 \ubcbd PETG \ud22c\uba85 \ubd80\ud488 \uc608\uc2dc<\/figcaption><\/figure>\n<p>\uacb0\ub860\uc801\uc73c\ub85c, \ubd80\ud488\uc774 \ud22c\uba85\ud558\uace0 \uac15\uc778\ud558\uba70 \ub0b4\ud654\ud559\uc131\uc774 \ud544\uc694\ud558\uace0 \ud3f4\ub9ac\uce74\ubcf4\ub124\uc774\ud2b8\uc758 \uadf9\ud55c \ub0b4\uc5f4\uc131\uae4c\uc9c0\ub294 \ud544\uc694\ud558\uc9c0 \uc54a\ub2e4\uba74, PETG\uac00 \uc77c\ubc18\uc801\uc73c\ub85c \ucd5c\uc120\uc758 \uc120\ud0dd\uc785\ub2c8\ub2e4. \uac00\uacf5\uc774 \uc27d\uace0 PC\ubcf4\ub2e4 \ube44\uc6a9\uc774 \uc801\uac8c \ub4e4\uba70 \ub354 \ub098\uc740 \ub0b4\ud654\ud559\uc131\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4. \ub300\uc2e0 \ub0b4\uc5f4\uc131\uc774 \ub0ae\ub2e4\ub294 \ub2e8\uc810\uc774 \uc788\uc2b5\ub2c8\ub2e4. \ubd80\ud488\uc774 70 \u00b0C \uc774\uc0c1\uc758 \uc9c0\uc18d\uc801\uc778 \uc628\ub3c4\uc5d0 \ub178\ucd9c\ub420 \uacbd\uc6b0 PC\ub97c \uace0\ub824\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n<h2>ZetarMold\ub294 \uc0dd\uc0b0\uc5d0\uc11c PETG\ub97c \uc5b4\ub5bb\uac8c \ucc98\ub9ac\ud558\ub098\uc694?<\/h2>\n<p>\uc800\ud76c \uc0c1\ud558\uc774 \uc2dc\uc124\uc5d0\uc11c\ub294 PETG\uac00 \ucc98\ub9ac\ub7c9 \uae30\uc900 \uc0c1\uc704 5\ub300 \uc18c\uc7ac \uc911 \ud558\ub098\uc785\ub2c8\ub2e4. 90\ud1a4\uc5d0\uc11c 1850\ud1a4\uc5d0 \uc774\ub974\ub294 47\ub300\uc758 \uc0ac\ucd9c \uc131\ud615\uae30\ub97c \ubcf4\uc720\ud558\uc5ec, \uc18c\ud615 \uc758\ub8cc \uae30\uae30 \ud558\uc6b0\uc9d5\ubd80\ud130 \ub300\ud615 \uc0b0\uc5c5\uc6a9 \ub514\uc2a4\ud50c\ub808\uc774 \ucee4\ubc84\uc5d0 \uc774\ub974\ub294 PETG \ubd80\ud488\uc744 \ub2e4\ub8e8\uace0 \uc788\uc2b5\ub2c8\ub2e4. \uc9c0\ub09c 20\ub144 \uc774\uc0c1 \uc218\ucc9c \ubc88\uc758 PETG \uc131\ud615 \uc0ac\uc774\ud074\uc744 \uc6b4\uc601\ud558\uba70 \uc5bb\uc740 \ub178\ud558\uc6b0\ub97c \uacf5\uc720\ud569\ub2c8\ub2e4.<\/p>\n<table style=\"width:100%;border-collapse:collapse;margin:1.5em 0;\">\n<caption style=\"font-weight:bold;margin-bottom:0.5em;\">ZetarMold PETG \uc0dd\uc0b0 \ub2a5\ub825<\/caption>\n<thead>\n<tr>\n<th style=\"border:1px solid #ddd;padding:8px;background:#f5f5f5;\">Capability<\/th>\n<th style=\"border:1px solid #ddd;padding:8px;background:#f5f5f5;\">Specification<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"border:1px solid #ddd;padding:8px;\">\uc0ac\ucd9c \uc131\ud615\uae30<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">45\ub300\uc758 \uc0ac\ucd9c \uc131\ud615\uae30, 90\ud1a4~1850\ud1a4<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #ddd;padding:8px;\">\uc18c\uc7ac \ubc94\uc704<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">\uc8fc\uc694 PETG \ub4f1\uae09\uc744 \ud3ec\ud568\ud55c 400\uc885 \uc774\uc0c1\uc758 \uc18c\uc7ac \uac00\uacf5<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #ddd;padding:8px;\">\uc5d4\uc9c0\ub2c8\uc5b4\ub9c1 \ud300<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">\uac01\uc790 10\ub144 \uc774\uc0c1\uc758 \uacbd\ub825\uc744 \uac00\uc9c4 8\uba85\uc758 \uc2dc\ub2c8\uc5b4 \uc5d4\uc9c0\ub2c8\uc5b4<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #ddd;padding:8px;\">Production Staff<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">120+ production workers<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #ddd;padding:8px;\">Monthly Mold Output<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">100+ sets of injection molds per month<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #ddd;padding:8px;\">Quality System<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">ISO 9001 \/ 13485 \/ 14001 \/ 45001 certified<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #ddd;padding:8px;\">International Team<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">30+ fluent English speakers for global communication<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Dryer discipline is non-negotiable. We run dehumidifying hopper dryers at 70 \u00b0C for a minimum of 4 hours before every PETG job. Our material handlers know that skipping drying on PETG means scrapping the first 20 shots minimum. Gate design matters more than people think \u2014 on transparent PETG parts, we almost always specify fan gates or edge gates with a width of 60\u201380 % of the wall thickness to minimize shear and produce a clean flow front.<\/p>\n<p>Mold temperature control wins quality. We use water-circulating mold temperature controllers set to 25\u201330 \u00b0C for most PETG parts. This gives the best combination of surface clarity and cycle time. For parts with heavy wall thickness variation, we bump to 50 \u00b0C. For medical and optical applications, we sometimes anneal PETG parts at 65\u201370 \u00b0C for 30\u201360 minutes to relieve residual internal stress, improving dimensional stability and reducing the risk of stress cracking in chemical environments.<\/p>\n<p>If you are developing a new PETG application and need help with material selection, mold design, or process optimization, reach out \u2014 we are happy to share what we have learned. Our team responds within 24 hours and can provide comprehensive <a href=\"https:\/\/zetarmold.com\/ko\/injection-molding-supplier-sourcing-guide\/\">sourcing<\/a> support from initial DFM review through production launch.<\/p>\n<h2>PETG \uc0ac\ucd9c \uc131\ud615\uc5d0 \uad00\ud55c \uc790\uc8fc \ubb3b\ub294 \uc9c8\ubb38<\/h2>\n<h2>\uc790\uc8fc \ubb3b\ub294 \uc9c8\ubb38<\/h2>\n<h3>What temperature do you injection mold PETG at?<\/h3>\n<p>PETG is typically injection molded with a melt temperature of 220\u2013260 \u00b0C and a mold temperature of 15\u201340 \u00b0C for clarity-critical parts, or up to 65 \u00b0C for parts requiring additional stress relief during cooling. The barrel should be profiled from 210 \u00b0C at the rear to 250 \u00b0C at the nozzle for optimal material homogenization and consistent melt quality. Exceeding 280 \u00b0C risks thermal degradation, yellowing, and loss of impact properties, so stay within the recommended window and monitor melt color closely throughout your production runs.<\/p>\n<h3>Does PETG need to be dried before injection molding?<\/h3>\n<p>Yes, absolutely. PETG should be dried at 65\u201375 \u00b0C for 4\u20136 hours to reduce moisture below 0.02 % by weight before any molding begins. Even though PETG is less hygroscopic than nylon or polycarbonate, residual moisture causes splay marks on the part surface, significantly reduced impact strength, bubbles trapped in thick sections, and dimensional inconsistency from shot to shot. Use a dehumidifying hopper dryer with a dew point below -20 \u00b0C, and keep the hopper at temperature throughout the entire production run to prevent reabsorption of ambient moisture.<\/p>\n<h3>Can PETG be used for food-contact applications?<\/h3>\n<p>Many PETG grades comply with FDA 21 CFR \u00a7177.1630 for direct food-contact use, making them suitable for food containers, beverage bottles, deli trays, and kitchenware applications. Always verify the specific grade&#8217;s compliance certificate with your material supplier before committing to a food-contact application, as not all PETG formulations are manufactured to food-grade standards. Additionally, some PETG grades also meet European Union food contact regulations under EU Regulation 10\/2011 for broader international market access and regulatory compliance across multiple global regions.<\/p>\n<h3>What causes haze in molded PETG parts?<\/h3>\n<p>Haze in PETG molded parts is typically caused by excessive shear from too-fast injection through a small gate opening, insufficient melt temperature for complete material homogenization, or contamination from a different resin introduced through the hopper or barrel. To fix haze issues, increase the gate size to reduce shear stress on the melt, verify that barrel temperatures are properly profiled at 240\u2013250 \u00b0C at the nozzle, reduce injection speed during the initial fill stage, and thoroughly clean the hopper and feeding system to eliminate any cross-contamination from previous production runs.<\/p>\n<h3>How does PETG compare to polycarbonate for transparent parts?<\/h3>\n<p>PETG offers similar optical clarity to polycarbonate at a significantly lower material cost and with much easier processing characteristics overall. PETG melts at 220\u2013260 \u00b0C versus PC&#8217;s 280\u2013320 \u00b0C, requires less aggressive drying procedures, and resists many chemicals that cause stress cracking in polycarbonate. However, polycarbonate wins on heat resistance with a Tg of 147 \u00b0C compared to PETG&#8217;s 88 \u00b0C, and PC has slightly higher absolute impact strength. For most applications operating below 70 \u00b0C service temperature, PETG provides the better overall value proposition for transparent injection molded parts.<\/p>\n<h3>What is the typical shrinkage rate for PETG injection molding?<\/h3>\n<p>PETG exhibits shrinkage of 0.3\u20130.7 %, which is typical for amorphous thermoplastics and significantly lower than semi-crystalline materials like nylon at 1.0\u20132.0 % or acetal at 1.8\u20132.5 %. This low, isotropic shrinkage rate makes PETG relatively straightforward to mold to tight dimensional tolerances without requiring complex shrinkage compensation in the tool design. Maintaining uniform wall thickness throughout the part geometry and applying proper holding pressure until gate freeze both help minimize differential shrinkage and prevent warpage in the finished molded components.<\/p>\n<h3>Can you overmold PETG with TPE or TPU materials?<\/h3>\n<p>Yes, PETG is commonly used as a rigid substrate for TPE or TPU overmolding in consumer electronics, power tools, and medical device applications where a soft-touch surface is needed over a clear or rigid base component. The chemical compatibility between PETG and many TPE or TPU grades is good, producing adequate bond strength at the material interface. For best results, design mechanical interlocks into the tool geometry, ensure proper surface preparation of the PETG substrate, and optimize the overmold temperature to achieve chemical bonding without deforming or distorting the rigid base part during the second injection shot.<\/p>\n<h3>What gate types work best for PETG injection molding?<\/h3>\n<p>Edge gates and fan gates are the best choices for PETG, especially for transparent parts where optical quality matters. These gate types provide a wide, low-shear entry that minimizes flow marks, jetting, and gate blush. Submarine gates work for small parts but may leave visible vestige on clear surfaces. Avoid pinpoint gates for larger parts because the high shear through a small orifice degrades PETG and creates haze near the gate. Gate width should be 60\u201380 % of the nominal wall thickness for optimal fill.<\/p>\n<h2>PETG \uc0ac\ucd9c \uc131\ud615\uc744 \uc2dc\uc791\ud558\ub294 \ubc29\ubc95\uc740?<\/h2>\n<p>PETG injection molding combines optical clarity, impact toughness, and processing ease in one versatile clear thermoplastic. Whether you are molding medical device housings, food-contact containers, consumer electronics displays, or protective packaging, PETG offers a balance that few other transparent resins can match.<\/p>\n<p>The key to success is straightforward: dry the material properly at 65\u201375 \u00b0C for 4\u20136 hours, design your mold with adequate gates and uniform wall thickness, run within the 220\u2013260 \u00b0C melt window, and hold until the gate freezes. Do those four things consistently, and PETG will reward you with clear, tough, dimensionally stable parts cycle after cycle.<\/p>\n<p>At ZetarMold, we have been running PETG and 400+ other materials for over 20 years at our Shanghai facility. With 45 machines from 90T to 1850T and a team of 8 senior engineers, we can help you take your PETG project from concept to production. <strong>Get a free quote today<\/strong> and let our engineering team optimize your part design and molding process.<\/p>\n<hr style=\"margin:2em 0;border:none;border-top:1px solid #e0e0e0;\" \/>\n<ol class=\"footnotes\">\n<li id=\"fn:1\">\n<p><strong>PETG<\/strong>: PETG refers to polyethylene Terephthalate Glycol \u2014 a thermoplastic polyester copolymer known for clarity, toughness, and chemical resistance. Glass transition temperature of approximately 88 \u00b0C (190 \u00b0F). <a href=\"#fnref1:1\" class=\"footnote-backref\">\u21a9<\/a><\/p>\n<\/li>\n<li id=\"fn:2\">\n<p><strong>PETG \uc778\uc7a5 \uac15\ub3c4<\/strong>: PETG tensile strength refers to the nominal range of 50\u201355 MPa for standard PETG grades, with elongation at break of 100\u2013150 % per Eastman Chemical datasheets. <a href=\"#fnref1:2\" class=\"footnote-backref\">\u21a9<\/a><\/p>\n<\/li>\n<li id=\"fn:3\">\n<p><strong>PETG \uac74\uc870 \uc628\ub3c4<\/strong>: Drying temperature for PETG refers to the recommended 65\u201375 \u00b0C for 4\u20136 hours to reduce moisture below 0.04 % per Autodesk Moldflow material guidelines. <a href=\"#fnref1:3\" class=\"footnote-backref\">\u21a9<\/a><\/p>\n<\/li>\n<\/ol>","protected":false},"excerpt":{"rendered":"<p>PETG1(\ud3f4\ub9ac\uc5d0\ud2f8\ub80c \ud14c\ub808\ud504\ud0c8\ub808\uc774\ud2b8 \uae00\ub9ac\ucf5c)\uc740 \ub2e4\ub978 \uc5f4\uac00\uc18c\uc131 \uc218\uc9c0\ub4e4\uc774 \ub530\ub77c\uc62c \uc218 \uc5c6\ub294 \uc774\uc0c1\uc801\uc778 \uc9c0\uc810\uc5d0 \uc704\uce58\ud574 \uc788\uc2b5\ub2c8\ub2e4: \ud3f4\ub9ac\uce74\ubcf4\ub124\uc774\ud2b8\uc5d0 \uadfc\uc811\ud55c \uad11\ud559\uc801 \ud22c\uba85\uc131, ABS\uc5d0 \ud544\uc801\ud558\ub294 \ub0b4\ucda9\uaca9\uc131, \uadf8\ub9ac\uace0 \uc591\uc790\ub97c \ubaa8\ub450 \ub2a5\uac00\ud558\ub294 \ub0b4\ud654\ud559\uc131\uc744 \uac16\ucd94\uace0 \uc788\uc73c\uba70, \ub354 \ub0ae\uc740 \uac00\uacf5 \uc628\ub3c4\uc640 \ube44\uc6a9\uc73c\ub85c \uac00\ub2a5\ud569\ub2c8\ub2e4. \ud22c\uba85\ud55c \uc758\ub8cc \uae30\uae30 \ud558\uc6b0\uc9d5, \uc18c\ube44\uc790 \uc804\uc790\uc81c\ud488 \ub514\uc2a4\ud50c\ub808\uc774 \ucc3d, \ud639\uc740 [\u2026]\ub97c \uc190\uc5d0 \uc950\uc5b4 \ubcf8 \uc801\uc774 \uc788\ub2e4\uba74<\/p>","protected":false},"author":1,"featured_media":51596,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_seopress_robots_primary_cat":"","_seopress_titles_title":"PETG Injection Molding: Complete Processing Guide for Engineers","_seopress_titles_desc":"Master PETG injection molding with this engineer's guide covering melt temperatures, mold design, processing parameters, common defects, and real-world applications.","_seopress_robots_index":"","_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[45],"tags":[88,48],"meta_box":{"post-to-quiz_to":[]},"_links":{"self":[{"href":"https:\/\/zetarmold.com\/ko\/wp-json\/wp\/v2\/posts\/53968"}],"collection":[{"href":"https:\/\/zetarmold.com\/ko\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/zetarmold.com\/ko\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/zetarmold.com\/ko\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/zetarmold.com\/ko\/wp-json\/wp\/v2\/comments?post=53968"}],"version-history":[{"count":0,"href":"https:\/\/zetarmold.com\/ko\/wp-json\/wp\/v2\/posts\/53968\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/zetarmold.com\/ko\/wp-json\/wp\/v2\/media\/51596"}],"wp:attachment":[{"href":"https:\/\/zetarmold.com\/ko\/wp-json\/wp\/v2\/media?parent=53968"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/zetarmold.com\/ko\/wp-json\/wp\/v2\/categories?post=53968"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/zetarmold.com\/ko\/wp-json\/wp\/v2\/tags?post=53968"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}