{"id":16194,"date":"2026-03-27T21:20:16","date_gmt":"2026-03-27T13:20:16","guid":{"rendered":"https:\/\/zetarmold.com\/?p=16194"},"modified":"2026-04-14T09:59:38","modified_gmt":"2026-04-14T01:59:38","slug":"schimmelkrimp","status":"publish","type":"post","link":"https:\/\/zetarmold.com\/nl\/schimmelkrimp\/","title":{"rendered":"3D-weergave van een complexe spuitgietmal voor plastic met metalen en oranje onderdelen op een grijze achtergrond."},"content":{"rendered":"<p>De reden is structuur. Tijdens het afkoelen bevriezen amorfe kunststoffen in een meer willekeurige moleculaire rangschikking, waardoor volumeverandering relatief beperkt en uniformer is. Een thermoplast met een semi-kristallijne structuur vormt geordende gebieden tijdens het afkoelen, wat de krimp verhoogt en de krimp meer richtingsgevoelig kan maken.<\/p>\n<p>Dat klinkt eenvoudig, maar hier lopen veel projecten mis. Kopers vergelijken vaak een strakke tekeningtolerantie met een kunststofdatabladnummer en nemen aan dat de matrijs bij het eerste schot op nominaal moet uitkomen. In echte productie veranderen kunststoffamilie, wanddikte, poortbalans en procesinstellingen allemaal de uiteindelijke onderdeelafmeting.<\/a<a>krimp<\/a><sup id=\"fnref1:1\"><a href=\"#fn:1\" class=\"footnote-ref\">1<\/a><\/sup><\/p>\n<p>At ZetarMold, we treat shrinkage as a mold engineering problem, not a last-minute sampling surprise. During DFM, we combine material data, part geometry, and experience from similar tools so the first mold trial starts close to target instead of chasing corrections through repeated steel work.<\/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\" viewbox=\"0 0 24 24\" width=\"20\" height=\"20\" fill=\"currentColor\"><path d=\"M9 16.17L4.83 12l-1.42 1.41L9 19 21 7l-1.41-1.41z\"><\/path><\/svg><b>\u201cSemi-kristallijne materialen krimpen meer dan amorfe.\u201d<\/b><span class=\"claim-true-or-false\">Echt<\/span><\/p>\n<p class=\"claim-explanation\">Semi-crystalline polymers like PEEK and nylon have ordered molecular structures that contract significantly during cooling. Amorphous materials like PC and PMMA have random molecular arrangements with less dimensional change.<\/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\" viewbox=\"0 0 24 24\" width=\"20\" height=\"20\" fill=\"currentColor\"><path d=\"M19 6.41L17.59 5 12 10.59 6.41 5 5 6.41 10.59 12 5 17.59 6.41 19 12 13.41 17.59 19 19 17.59 13.41 12z\"><\/path><\/svg><b>\u201cKrimp is puur een materiaaleigenschap en kan niet worden be\u00efnvloed door matrijssontwerp.\u201d<\/b><span class=\"claim-true-or-false\">Vals<\/span><\/p>\n<p class=\"claim-explanation\">Mold design significantly affects shrinkage through cooling channel placement, gate location, and wall thickness uniformity. Proper design compensates for <a href=\"https:\/\/zetarmold.com\/nl\/injection-mold-complete-guide\/\">material shrinkage<\/a> tendencies.<\/p>\n<\/div>\n<div class=\"callout-key\" style=\"background:#f0f7ff; border-left:4px solid #2563eb; padding:1em 1.2em; border-radius:6px; margin:1.5em 0;&#8221;><strong>Key Takeaways<\/strong><\/p><ul><li>Injection mold shrinkage is calculated with S = [(Dm &#8211; Dp) \/ Dm] \u00d7 100.<\/li><li>Typical shrinkage for molded plastics ranges from about 0.1% to 3.0%.<\/li><li>Amorphous materials such as ABS, PC, and PMMA usually shrink less than semi-crystalline materials such as PP, PE, PA, and POM.<\/li><li>Higher packing pressure, balanced wall thickness, and correct mold temperature all help reduce dimensional variation.<\/li><li>Mold cavities are usually scaled by 1 plus the expected shrinkage factor, then fine-tuned after sampling.<\/li><\/ul><\/div><h2>What Is Injection Mold Shrinkage and Why Does It Matter?<\/h2><p>Injection mold shrinkage is the dimensional reduction that occurs when molten plastic cools, solidifies, and relaxes after filling the cavity. It matters because the mold cavity is not the final size of the part; the cavity must be intentionally oversized to account for the way each resin contracts.<\/p><div class=\"claim claim-true\">\n<p><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 24 24\" width=\"20\" height=\"20\" fill=\"currentColor\"><path d=\"M9 16.17L4.83 12l-1.42 1.41L9 19 21 7l-1.41-1.41z\"><\/path><\/svg><b>\u201cKrimpcompensatie moet rekening houden met zowel matrijs- als materiaalvariabelen.\u201d<\/b><span class=\"claim-true-or-false\">Echt<\/span><\/p>\n<p class=\"claim-explanation\">Shrinkage rates vary by material grade, wall thickness, and processing conditions. Comprehensive compensation requires simultaneous adjustment of mold design and process parameters.<\/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\" viewbox=\"0 0 24 24\" width=\"20\" height=\"20\" fill=\"currentColor\"><path d=\"M19 6.41L17.59 5 12 10.59 6.41 5 5 6.41 10.59 12 5 17.59 6.41 19 12 13.41 17.59 19 19 17.59 13.41 12z\"><\/path><\/svg><b>\u201cAlle materialen krimpen met hetzelfde tempo tijdens het spuitgieten.\u201d<\/b><span class=\"claim-true-or-false\">Vals<\/span><\/p>\n<p class=\"claim-explanation\">Different materials have vastly different shrinkage rates. Semi-crystalline materials like PE and PP shrink 1-3%, while amorphous materials like PC and ABS shrink only 0.4-0.7%.<\/p>\n<\/div>\n<p>For most plastic parts, total shrinkage falls somewhere between 0.1% and 3.0%, but that range hides big differences between materials. A transparent PC cover may stay relatively stable, while a PP housing of the same size can move much more. That is why shrinkage is tied directly to both <a href=\"https:\/\/zetarmold.com\/nl\/injection-mold-complete-guide\/\">ontwerp van spuitgietmatrijzen<\/a> en het bredere spuitgietproces.<\/a<a>spuitgieten<\/a><sup id=\"fnref1:2\"><a href=\"#fn:2\" class=\"footnote-ref\">2<\/a><\/sup><\/p>\n<p>Two dimensions define the topic. Dm is the mold dimension, and Dp is the final part dimension after cooling. The gap between them is not waste or error by default. It is planned compensation, based on how the selected resin behaves during cooling and post-mold stabilization.<\/p>\n<h3>Common Shrinkage Misconceptions<\/h3>\n<p>The biggest mistake is treating shrinkage as a single number pulled from a datasheet. Actual molded parts respond to local wall thickness, gate placement, cooling efficiency, and orientation. A flat plaque can shrink differently from a ribbed box, even when both are molded from the same resin lot on the same press.<\/p>\n<p>Dit is ook de reden waarom vervorming optreedt. Wanneer de krimp uniform is, wordt het onderdeel eenvoudigweg kleiner. Wanneer de krimp verschilt per richting of doorsnededikte, buigt, draait of trekt het onderdeel uit het vierkant. In de praktijk is dimensionaal falen vaak een differentieel koelprobleem vermomd als een tolerantieprobleem.<\/a<a>krimpbeheersing<\/a><sup id=\"fnref1:3\"><a href=\"#fn:3\" class=\"footnote-ref\">3<\/a><\/sup><\/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\" viewbox=\"0 0 24 24\" width=\"20\" height=\"20\" fill=\"currentColor\"><path d=\"M9 16.17L4.83 12l-1.42 1.41L9 19 21 7l-1.41-1.41z\"><\/path><\/svg><b>\u201cAlle spuitgietmaterialen krimpen na het gieten.\u201d<\/b><span class=\"claim-true-or-false\">Echt<\/span><\/p>\n<p class=\"claim-explanation\">Every thermoplastic loses volume as it cools from melt temperature to room temperature. The amount changes by resin family, filler content, and process conditions, but the basic contraction behavior is universal.<\/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\" viewbox=\"0 0 24 24\" width=\"20\" height=\"20\" fill=\"currentColor\"><path d=\"M19 6.41L17.59 5 12 10.59 6.41 5 5 6.41 10.59 12 5 17.59 6.41 19 12 13.41 17.59 19 19 17.59 13.41 12z\"><\/path><\/svg><b>\u201cU kunt dezelfde matrijsafmetingen gebruiken voor zowel PP- als ABS-onderdelen.\u201d<\/b><span class=\"claim-true-or-false\">Vals<\/span><\/p>\n<p class=\"claim-explanation\">PP typically shrinks around 1.5-2.5%, while ABS is usually closer to 0.4-0.7%. A cavity sized for ABS will not hold the same final dimensions if the resin changes to PP.<\/p>\n<\/div>\n<p>At our Shanghai factory, shrinkage review starts before tooling release because cavity steel is expensive to rework later. We run 45 injection molding machines from 90T to 1850T, and the most common mismatch we see is a customer asking for \u00b10.05 mm on a semi-crystalline PP part, then questioning why T1 samples miss by 0.3-0.5 mm. That is usually inherent material behavior, not careless molding.<\/p>\n<p><div class=\"factory-insight\" style=\"background:#f6f8fb;border-left:4px solid #1d4ed8;padding:1em 1.2em;margin:1.5em 0;border-radius:6px;\"><strong>Factory insight:<\/strong> In our Shanghai factory, we run 45 injection molding machines from 90T to 1850T. Shrinkage control is part of every DFM review we do. The most common issue we see is customers giving us tight tolerances such as \u00b10.05 mm on parts made from semi-crystalline PP, then being surprised when early samples are off by 0.3-0.5 mm. That is not a process error; it is inherent material behavior that we account for in the mold design phase.<\/div>\n<\/p>\n<figure style=\"text-align:center;margin:2em 0;\">\n<img fetchpriority=\"high\" width=\"800\" height=\"457\" decoding=\"async\" src=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2026\/04\/dual-injection-molding-system-800x457-1.jpg\" class=\"wp-image-53257\" alt=\"Injection molding shrinkage factors overview\" style=\"max-width:100%;height:auto;\" sizes=\"(max-width: 800px) 100vw, 800px\" srcset=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2026\/04\/dual-injection-molding-system-800x457-1.jpg 800w, https:\/\/zetarmold.com\/wp-content\/uploads\/2026\/04\/dual-injection-molding-system-800x457-1-300x171.jpg 300w, https:\/\/zetarmold.com\/wp-content\/uploads\/2026\/04\/dual-injection-molding-system-800x457-1-768x439.jpg 768w, https:\/\/zetarmold.com\/wp-content\/uploads\/2026\/04\/dual-injection-molding-system-800x457-1-18x10.jpg 18w, https:\/\/zetarmold.com\/wp-content\/uploads\/2026\/04\/dual-injection-molding-system-800x457-1-600x343.jpg 600w\" \/><figcaption style=\"font-size:0.78em; color:#888; font-style:italic; margin-top:4px; text-align:center;\">Injection molding system overview<\/figcaption><\/figure>\n<h2>How Do You Calculate Mould Shrinkage?<\/h2>\n<p>matrijskrimp wordt berekend met S = [(Dm \u2013 Dp) \/ Dm] \u00d7 100. In die formule is S het krimppercentage, Dm is de matrijsafmeting en Dp is de gemeten onderdeelafmeting na het gieten.<\/p>\n<p>Hier is de eenvoudige logica. Stel dat de matrijsafmeting 100,00 mm is en het gemeten onderdeel na afkoeling 98,50 mm meet. De berekening wordt dan S = [(100,00 \u2013 98,50) \/ 100,00] \u00d7 100 = 1,5%. Dat betekent dat het onderdeel met 1,5% is gekrompen ten opzichte van de matrijsgrootte.<\/p>\n<p>Engineers also run the equation in reverse during tool design. If the target part dimension is 100.00 mm and expected shrinkage is 1.8%, the cavity should be about 101.80 mm before steel is cut. In other words, mold dimensions are scaled by 1 plus the shrinkage factor, then validated through sampling.<\/p>\n<p>That reverse calculation is practical, but it still needs judgment. Datasheet values are often given as a range because the same resin can behave differently under different injection molding process parameters.<\/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\" viewbox=\"0 0 24 24\" width=\"20\" height=\"20\" fill=\"currentColor\"><path d=\"M9 16.17L4.83 12l-1.42 1.41L9 19 21 7l-1.41-1.41z\"><\/path><\/svg><b>\u201cUniforme wanddikte is de meest effectieve manier om krimp te beheersen.\u201d<\/b><span class=\"claim-true-or-false\">Echt<\/span><\/p>\n<p class=\"claim-explanation\">Consistent wall thickness ensures even cooling and uniform shrinkage throughout the part. Wall thickness variations exceeding 25% create differential shrinkage leading to warping and sink marks.<\/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\" viewbox=\"0 0 24 24\" width=\"20\" height=\"20\" fill=\"currentColor\"><path d=\"M19 6.41L17.59 5 12 10.59 6.41 5 5 6.41 10.59 12 5 17.59 6.41 19 12 13.41 17.59 19 19 17.59 13.41 12z\"><\/path><\/svg><b>\u201cHet toevoegen van meer koelkanalen vermindert altijd de krimp.\u201d<\/b><span class=\"claim-true-or-false\">Vals<\/span><\/p>\n<p class=\"claim-explanation\">Cooling channels reduce cycle time but do not change material shrinkage rates. They improve dimensional consistency by ensuring uniform cooling, but the material itself shrinks the same amount.<\/p>\n<\/div>\n<h3>Practical Shrinkage Measurement<\/h3>\n<p>Packing profile, cooling time, gate freeze, and mold surface temperature all influence where the finished part lands inside that range.<\/p>\n<p>For accurate measurement, do not rush dimensional inspection the moment the part is ejected. Many materials continue to relax after demolding, especially thick-walled or semi-crystalline grades. A consistent inspection method matters as much as the formula itself. If one team measures after 10 minutes and another measures after 24 hours, the shrinkage result may not be comparable.<\/p>\n<p>A good process study separates overall shrinkage from local variation. A box may show acceptable outer dimensions but still fail around holes, bosses, or ribs because those sections cool at different rates. That is why experienced tooling teams measure several control dimensions instead of relying on one overall length.<\/p>\n<p>In productiegereedschappen beginnen we normaal gesproken met het materiaalbereik van de leverancier, vergelijken dit met vergelijkbare historische gereedschappen en stellen dan steekproefcontrolepunten in rond de meest gevoelige afmetingen. Als het onderdeel cosmetisch of functioneel is, kunnen we \u00e9\u00e9n afmeting prioriteren voor staalveilige afstelling terwijl andere gebieden aanpasbaar blijven via procesoptimalisatie.<\/p>\n<figure style=\"text-align:center;margin:2em 0;\">\n<img loading=\"lazy\" width=\"1200\" height=\"685\" decoding=\"async\" src=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2026\/04\/shrinkage-compensation-injection-molding.webp\" class=\"wp-image-53437\" alt=\"Injection molding shrinkage calculation diagram\" style=\"max-width:100%;height:auto;\" srcset=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2026\/04\/shrinkage-compensation-injection-molding.webp 1200w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><figcaption style=\"font-size:0.78em; color:#888; font-style:italic; margin-top:4px; text-align:center;\">Shrinkage formula diagram<\/figcaption><\/figure>\n<h2>Shrinkage Rates by Material: Semi-Crystalline vs. Amorphous<\/h2>\n<p>Material family is the biggest driver of shrinkage, and semi-crystalline resins usually shrink more than amorphous ones. As a rule, amorphous materials such as PC, ABS, and PMMA often fall around 0.4-0.8%, while semi-crystalline materials such as PP, PE, PA, and POM more often land between 1.0% and 3.0% or even higher in some grades.<\/p>\n<p>The reason is structure. During cooling, amorphous plastics freeze in a more random molecular arrangement, so volume change is relatively limited and more uniform. A thermoplastic with a semi-crystalline structure structure forms ordered regions as it cools, which increases contraction and can make the shrinkage more directional.<\/p>\n<p>Wereldwijde versus Lokale Vergoeding<\/p>\n<table style=\"width:100%;border-collapse:collapse;margin:1.5em 0;\">\n<caption style=\"font-weight:bold;margin-bottom:0.5em;\">Material shrinkage guide<\/caption>\n<thead>\n<tr>\n<th style=\"border:1px solid #ddd;padding:8px;background:#f5f5f5;\">Materiaal<\/th>\n<th style=\"border:1px solid #ddd;padding:8px;background:#f5f5f5;\">Type<\/th>\n<th style=\"border:1px solid #ddd;padding:8px;background:#f5f5f5;\">Krimppercentage<\/th>\n<th style=\"border:1px solid #ddd;padding:8px;background:#f5f5f5;\">Typical Use<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"border:1px solid #ddd;padding:8px;\">PP<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">Semi-crystalline<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">1.5-2.5%<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">Consumer goods, auto parts<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #ddd;padding:8px;\">PE (HDPE)<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">Semi-crystalline<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">1.5-3.0%<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">Containers, packaging<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #ddd;padding:8px;\">PA66 (Nylon)<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">Semi-crystalline<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">1.0-2.0%<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">Mechanical parts<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #ddd;padding:8px;\">POM (Acetal)<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">Semi-crystalline<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">2.0-3.5%<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">Precision gears<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #ddd;padding:8px;\">ABS<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">Heeft het nodig<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">0.4-0.7%<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">Electronic enclosures<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #ddd;padding:8px;\">PC<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">Heeft het nodig<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">0.5-0.7%<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">Optical parts, safety<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #ddd;padding:8px;\">PMMA<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">Heeft het nodig<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">0.2-0.5%<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">Displays, lenses<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>The table shows why a resin switch is never trivial. If a customer changes from ABS to PP to reduce cost, the tooling team has to revisit cavity sizing, gate balance, and tolerance assumptions. The part may still look similar, but the dimensional behavior can shift enough to require steel changes or at least a new process window.<\/p>\n<p>This is why material review has to happen early. A mold that runs beautifully in ABS can become unstable in POM or PA without redesigning cooling and gating strategy. Material cost is visible on the quote, but the hidden cost often shows up later as tool tuning, slower cycle time, and extra dimensional inspection. In tooling reviews, we compare resin change requests against the original cavity strategy because a low-cost material substitution can create expensive dimensional instability. What looks like a simple procurement choice may require a different gate size, revised cooling, or extra steel-safe stock on critical fit features. That is one reason experienced molders challenge late material changes instead of treating them as harmless.<\/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\/2026\/03\/material-shrinkage-comparison-injection-molding.webp\" class=\"wp-image-52706\" alt=\"Material shrinkage rates comparison injection molding\" style=\"max-width:100%;height:auto;\" srcset=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2026\/03\/material-shrinkage-comparison-injection-molding.webp 800w, https:\/\/zetarmold.com\/wp-content\/uploads\/2026\/03\/material-shrinkage-comparison-injection-molding-300x171.webp 300w, https:\/\/zetarmold.com\/wp-content\/uploads\/2026\/03\/material-shrinkage-comparison-injection-molding-768x439.webp 768w, https:\/\/zetarmold.com\/wp-content\/uploads\/2026\/03\/material-shrinkage-comparison-injection-molding-18x10.webp 18w, https:\/\/zetarmold.com\/wp-content\/uploads\/2026\/03\/material-shrinkage-comparison-injection-molding-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;\">Shrinkage rates by resin<\/figcaption><\/figure>\n<h2>What Are the 7 Factors That Affect Injection Mold Shrinkage?<\/h2>\n<p>Injection mold shrinkage is affected most by material type, wall thickness, packing pressure, mold temperature, melt temperature, gate location, and part geometry. Those seven variables decide how much material enters the cavity, how evenly it cools, and whether the contraction stays uniform or turns into warpage.<\/p>\n<ul>\n<li><strong>1) Material type<\/strong> sets the baseline. Semi-crystalline resins naturally shrink more than amorphous grades, and filler content changes the pattern further. A 30% glass-filled PA behaves nothing like unfilled PP, even if the nominal part size is the same.<\/p>\n<li><strong>2) Wall thickness<\/strong> controls cooling speed and local mass. Thick zones stay hot longer, keep shrinking longer, and are more likely to pull sinks or distort nearby surfaces. Thin and thick transitions are especially risky because the part is being asked to cool at two different rates at the same time.<\/p>\n<li><strong>3) Packing pressure<\/strong> directly compensates for volume loss before the gate freezes. In many tools, the effective packing range is around 60-80% of injection pressure. Too little hold pressure leaves the cavity under-packed. Too much can flash the part or create stress that shows up later as dimensional drift.<\/p>\n<figure style=\"text-align:center;margin:2em 0;\"><img decoding=\"async\" src=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2026\/04\/blue-metal-injection-mold.webp\" alt=\"Master Unit Die Quick-Change (MUD)\" class=\"wp-image-\" style=\"max-width:100%;height:auto;\" \/><figcaption style=\"font-size:0.78em; color:#888; font-style:italic; margin-top:4px; text-align:center;\">Master Unit Die Quick-Change (MUD)<\/figcaption><\/figure>\n<\/ul>\n<h3>Design and Tooling Factors<\/h3>\n<ul>\n<li><strong>4) Mold temperature<\/strong> changes how quickly the polymer solidifies at the cavity wall. Higher mold temperatures can improve surface finish and flow, but they often allow more crystallization in semi-crystalline resins, which can raise shrinkage. Lower temperatures may reduce total shrinkage but increase frozen-in stress if cooling is too aggressive.<\/p>\n<li><strong>5) Melt temperature<\/strong> verandert het startpunt van het materiaal. Hetere smelt stroomt meestal beter in dunne secties, maar verhoogt ook de hoeveelheid warmte die uit het onderdeel moet worden afgevoerd. Als koeling en naspuiting hier niet op worden afgestemd, kunnen de uiteindelijke afmetingen onverwacht verschuiven.<\/p>\n<li><strong>6) Gate location<\/strong> decides the flow path and pressure distribution. A poorly placed gate causes uneven fill, uneven pack, and uneven orientation. On larger parts, that is one of the fastest ways to create opposite corners that shrink by different amounts.<\/p>\n<li><strong>7) Part geometry<\/strong> amplifies everything else. Flat panels, long ribs, isolated bosses, and asymmetrical walls all make cooling less balanced. This is where shrinkage stops being just a resin issue and becomes a full tool engineering issue tied to injection molding materials, cooling layout, and feature design.<\/li>\n<\/ul>\n<table style=\"width:100%;border-collapse:collapse;margin:1.5em 0;\">\n<caption style=\"font-weight:bold;margin-bottom:0.5em;\">Shrinkage factor summary<\/caption>\n<thead>\n<tr>\n<th style=\"border:1px solid #ddd;padding:8px;background:#f5f5f5;\">Factor<\/th>\n<th style=\"border:1px solid #ddd;padding:8px;background:#f5f5f5;\">Typical effect<\/th>\n<th style=\"border:1px solid #ddd;padding:8px;background:#f5f5f5;\">Best response<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"border:1px solid #ddd;padding:8px;\">Higher wall thickness<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">Raises local shrinkage risk<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">Core out heavy sections<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #ddd;padding:8px;\">Higher packing pressure<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">Reduces overall shrinkage<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">Tune hold profile before freeze<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #ddd;padding:8px;\">Uneven gate location<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">Raises directional variation<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">Move or rebalance gates<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>When these variables are not balanced, the result is often differential shrinkage rather than simple overall size loss. Flow direction can contract differently from cross-flow direction, especially in glass-filled materials. That uneven contraction leads directly to warpage, bowed walls, twisted frames, and tolerance failures at assembly interfaces.<\/p>\n<p>The practical lesson is that no single parameter can rescue a poor geometry decision. If the part has thick ribs feeding a large flat wall and the gate is at one end, you cannot always solve the problem by raising hold pressure alone. The better fix may be changing rib ratio, relocating the gate, or redesigning cooling around the hot spot.<\/p>\n<h2>How Do You Compensate for Shrinkage in Mold Design?<\/h2>\n<p>Shrinkage is compensated in mold design by scaling cavity dimensions above the target part size and then supporting that sizing with balanced gating, cooling, and steel-safe tuning. The simple rule is to multiply the target dimension by 1 plus the expected shrinkage factor.<\/p>\n<figure style=\"text-align:center;margin:2em 0;\"><img decoding=\"async\" src=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2026\/04\/metal-injection-mold-blue.webp\" alt=\"Master Unit Die Quick-Change (MUD) background.\" class=\"wp-image-\" style=\"max-width:100%;height:auto;\" \/><figcaption style=\"font-size:0.78em; color:#888; font-style:italic; margin-top:4px; text-align:center;\">Master Unit Die Quick-Change (MUD) backg<\/figcaption><\/figure>\n<p>For example, if the required finished width is 80.00 mm and expected shrinkage is 1.2%, the starting cavity width becomes 80.96 mm. That gives the toolmaker a realistic first-cut dimension. From there, T1 and T2 trials tell you whether the real resin lot, actual cooling line layout, and part geometry confirm the estimate or push it slightly higher or lower.<\/p>\n<p>Good compensation is never just a spreadsheet exercise. Mold designers also choose gate positions that pack the critical areas first, size runners to maintain pressure, and build cooling lines so the hottest zones do not lag far behind the rest of the cavity. On tighter parts, steel-safe dimensions are planned intentionally so post-sampling adjustments stay possible.<\/p>\n<figure style=\"text-align:center;margin:2em 0;\"><img decoding=\"async\" src=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2026\/04\/precision-injection-mold-tool.webp\" alt=\"Master Unit Die Quick-Change (MUD)\" class=\"wp-image-\" style=\"max-width:100%;height:auto;\" \/><figcaption style=\"font-size:0.78em; color:#888; font-style:italic; margin-top:4px; text-align:center;\">Master Unit Die Quick-Change (MUD)<\/figcaption><\/figure>\n<p>Material-specific planning matters here.<\/p>\n<h3>Global vs. Local Compensation<\/h3>\n<p>Spuitgietkrimp: Berekenen &amp; Compenseren | ZetarMold<\/p>\n<p>We also separate global compensation from local compensation. A housing may need one overall scale factor, but bosses around screws or alignment tabs may need localized steel changes after trials. That is normal. The goal is not to guess perfectly once. The goal is to make the first mold version intelligent enough that tuning is small, fast, and predictable.<\/p>\n<p>In DFM reviews, we often flag designs where tolerance expectations are tighter than the selected material can realistically support. If a buyer wants a large PP cover to hold near-machined tolerances, the better engineering answer may be to change the material, add assembly float, or convert one critical feature into a post-machined surface rather than force the entire part into an unstable process window.<\/p>\n<figure style=\"text-align:center;margin:2em 0;\">\n<img loading=\"lazy\" width=\"1200\" height=\"685\" decoding=\"async\" src=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2026\/04\/3d-model-deformation-analysis.webp\" class=\"wp-image-53438\" alt=\"Injection mold shrinkage compensation diagram\" style=\"max-width:100%;height:auto;\" srcset=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2026\/04\/3d-model-deformation-analysis.webp 1200w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><figcaption style=\"font-size:0.78em; color:#888; font-style:italic; margin-top:4px; text-align:center;\">Shrinkage compensation method<\/figcaption><\/figure>\n<h2>Common Shrinkage Problems and How to Fix Them<\/h2>\n<p>The most common shrinkage problems are undersize parts, sink marks, warpage, oval holes, and dimension-to-dimension inconsistency. Each problem points to a different combination of root causes, so the fix starts with reading the pattern instead of changing settings blindly.<\/p>\n<p>If the entire part is uniformly undersize, the first suspect is incorrect shrinkage allowance in the tool. That usually means the cavity scale factor was too low or the actual material shrinkage is above the datasheet midpoint. The fix may require steel correction, but first confirm that the pack profile and measurement timing are consistent.<\/p>\n<p>If sinks appear above ribs or bosses, the issue is usually local mass concentration. A thicker interior feature keeps shrinking after the skin has frozen, pulling the outer surface inward. Common fixes include reducing rib thickness, increasing hold time, improving gate efficiency, or moving the gate closer to the heavy section so the cavity remains packed longer.<\/p>\n<p>If the part bows or twists, treat it as a warpage problem caused by unequal shrinkage. Look for asymmetric wall sections, weak cooling around one side, or material orientation from a one-sided gate. Process changes may help, but if the shape itself drives uneven cooling, the long-term correction usually lives in the tool or the part design.<\/p>\n<figure style=\"text-align:center;margin:2em 0;\"><img decoding=\"async\" src=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2026\/04\/metal-injection-mold-components.webp\" alt=\"Master Unit Die Quick-Change (MUD)\" class=\"wp-image-\" style=\"max-width:100%;height:auto;\" \/><figcaption style=\"font-size:0.78em; color:#888; font-style:italic; margin-top:4px; text-align:center;\">Master Unit Die Quick-Change (MUD)<\/figcaption><\/figure>\n<h3>Flow-Direction and Multi-Cavity Issues<\/h3>\n<p>If round holes become oval or mating tabs stop lining up, check for flow-direction effects. Reinforced materials can show strong orientation, and even unfilled resins may shift around long flow paths. In those cases, a gate relocation or a modified cooling layout often works better than simply increasing pressure.<\/p>\n<p>If dimensions vary from cavity to cavity, compare actual cooling circuit performance, venting, and gate balance before blaming the resin. Multi-cavity molds amplify small differences. One cavity running 3\u00b0C hotter than the others can create a dimensional trend that looks random until you map it against the tool layout.<\/p>\n<p>The worst response is shotgun tuning. Raising injection pressure, lowering mold temperature, and extending cooling all at once may shift the result, but it also hides the root cause. A better method is to lock one parameter set, change one variable at a time, and record how each critical dimension moves. That turns debugging into data instead of guesswork.<\/p>\n<figure style=\"text-align:center;margin:2em 0;\">\n<img loading=\"lazy\" width=\"800\" height=\"457\" decoding=\"async\" src=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2026\/04\/injection-molding-machine-sche-800x457-1.jpg\" class=\"wp-image-53255\" alt=\"Injection molding machine setup for shrinkage troubleshooting\" style=\"max-width:100%;height:auto;\" sizes=\"(max-width: 800px) 100vw, 800px\" srcset=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2026\/04\/injection-molding-machine-sche-800x457-1.jpg 800w, https:\/\/zetarmold.com\/wp-content\/uploads\/2026\/04\/injection-molding-machine-sche-800x457-1-300x171.jpg 300w, https:\/\/zetarmold.com\/wp-content\/uploads\/2026\/04\/injection-molding-machine-sche-800x457-1-768x439.jpg 768w, https:\/\/zetarmold.com\/wp-content\/uploads\/2026\/04\/injection-molding-machine-sche-800x457-1-18x10.jpg 18w, https:\/\/zetarmold.com\/wp-content\/uploads\/2026\/04\/injection-molding-machine-sche-800x457-1-600x343.jpg 600w\" \/><figcaption style=\"font-size:0.78em; color:#888; font-style:italic; margin-top:4px; text-align:center;\">Injection molding machine setup<\/figcaption><\/figure>\n<p>Across all of these failure modes, the pattern is consistent: shrinkage problems are easier to prevent during mold design than to correct after first shots. The most expensive fixes are the ones that require steel changes, and those are usually avoidable if shrinkage behavior is reviewed early with realistic material data and proven tool geometry.<\/p>\n<h2>De aanpak van ZetarMold voor krimpbeheersing<\/h2>\n<p>ZetarMold controls shrinkage by combining DFM review, realistic material selection, steel-safe tooling, and measured sampling feedback. We do not treat shrinkage as a generic number; we treat it as a predictable manufacturing behavior that must be engineered into the tool from the first injection mould design review.<\/p>\n<p>Our first step is material and tolerance alignment. If the drawing asks for a very tight tolerance on a large semi-crystalline part, we raise that issue early instead of pretending the mold can solve everything later. That conversation often saves more time than any tool adjustment, because it resets the project around material reality rather than wishful nominal dimensions.<\/p>\n<figure style=\"text-align:center;margin:2em 0;\"><img decoding=\"async\" src=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2026\/04\/t-and-standard-mold-comparison.webp\" alt=\"Master Unit Die Quick-Change (MUD) of T and Standard moldssh\" class=\"wp-image-\" style=\"max-width:100%;height:auto;\" \/><figcaption style=\"font-size:0.78em; color:#888; font-style:italic; margin-top:4px; text-align:center;\">Master Unit Die Quick-Change (MUD) of T <\/figcaption><\/figure>\n<h3>Geometry Review and Sampling<\/h3>\n<p>Next, we review part geometry for the classic shrinkage traps: thick-to-thin transitions, isolated bosses, long unsupported walls, and gates that create one-way flow through the most critical dimensions. We then use that review to recommend gate changes, cooling changes, or steel-safe stock on sensitive areas before manufacturing starts.<\/p>\n<p>During mold trials, we measure the dimensions that matter most to fit and function, not just the easiest dimensions to inspect. If the part needs later tuning, we want the tuning to happen in controlled, reversible steps. That is why our sampling reports track actual dimensional movement against process settings instead of just listing pass or fail.<\/p>\n<p>The short version is simple: if shrinkage is reviewed at the DFM stage, most dimensional issues can be predicted, compensated, or at least contained. If shrinkage is ignored until first shots, the project usually pays for it in extra trials, mold rework, and slower launch timing.<\/p>\n<figure style=\"text-align:center;margin:2em 0;\">\n<img loading=\"lazy\" width=\"800\" height=\"457\" decoding=\"async\" src=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2026\/04\/injection-molding-process-flow-800x457-1.jpg\" class=\"wp-image-53261\" alt=\"Injection molding process flowchart for shrinkage management\" style=\"max-width:100%;height:auto;\" sizes=\"(max-width: 800px) 100vw, 800px\" srcset=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2026\/04\/injection-molding-process-flow-800x457-1.jpg 800w, https:\/\/zetarmold.com\/wp-content\/uploads\/2026\/04\/injection-molding-process-flow-800x457-1-300x171.jpg 300w, https:\/\/zetarmold.com\/wp-content\/uploads\/2026\/04\/injection-molding-process-flow-800x457-1-768x439.jpg 768w, https:\/\/zetarmold.com\/wp-content\/uploads\/2026\/04\/injection-molding-process-flow-800x457-1-18x10.jpg 18w, https:\/\/zetarmold.com\/wp-content\/uploads\/2026\/04\/injection-molding-process-flow-800x457-1-600x343.jpg 600w\" \/><figcaption style=\"font-size:0.78em; color:#888; font-style:italic; margin-top:4px; text-align:center;\">Injection molding process flow<\/figcaption><\/figure>\n<h2>FAQ: Frequently Asked Questions About Mould Shrinkage?<\/h2>\n<h3>Wat is een normale krimpingsgraad bij spuitgieten?<\/h3>\n<p>A normal shrinkage rate is roughly 0.1% to 3.0%, depending on resin family, filler content, wall thickness, and processing conditions. Amorphous materials such as ABS and PC are often below 1.0%, while semi-crystalline materials such as PP, PE, PA, and POM often exceed 1.0% and can approach or pass 3.0% in some applications. The right number for tooling should come from both the datasheet and real molding experience with similar part geometry, not from a generic average alone.<\/p>\n<h3>Waarom krimpt PP meer dan ABS?<\/h3>\n<p>PP usually shrinks more than ABS because PP is semi-crystalline and forms ordered regions during cooling, which increases volume contraction. ABS is amorphous, so its molecular structure freezes more randomly and tends to produce lower, more uniform dimensional change after molding. In practice, that difference changes how much the cavity must be oversized and how tightly the process must control cooling and packing if the final dimensions are critical.<\/p>\n<h3>Hoe verminder je krimp bij spuitgieten?<\/h3>\n<p>You reduce shrinkage by selecting the right material, keeping wall thickness more uniform, applying adequate hold pressure, balancing cooling, and sizing the cavity correctly from the start. In many tools, optimizing packing pressure and gate efficiency delivers the fastest improvement because more material is packed in before freeze-off. Reducing local mass around ribs and bosses also helps, because thick sections continue shrinking after the outer skin has already solidified.<\/p>\n<h3>Kan krimp kromtrekken veroorzaken?<\/h3>\n<p>Yes, shrinkage causes warpage when it is not uniform across the part. If one side cools faster, one direction shrinks more, or one feature remains hot longer, the part bends or twists instead of shrinking evenly. That is why warpage is usually a differential shrinkage problem, not just a simple size problem. Reinforced materials are especially sensitive because fiber orientation can make flow-direction and cross-flow contraction behave very differently.<\/p>\n<h3>Wanneer moet rekening worden gehouden met krimp tijdens matrijsontwikkeling?<\/h3>\n<p>Shrinkage should be considered before mold steel is cut, ideally during DFM and gating review. Once the cavity is machined, correcting a wrong shrinkage assumption becomes much more expensive because the team may need steel welding, machining changes, or repeated sampling to recover the target dimensions. Early planning also helps confirm whether the selected resin can realistically hold the drawing tolerance without forcing the process into an unstable or inefficient production window.<\/p>\n<h3>Wat is het verschil tussen totale krimp en differenti\u00eble krimp?<\/h3>\n<p>Overall shrinkage is the general size reduction of the whole part after cooling, while differential shrinkage is uneven contraction between areas or directions of the same part. Overall shrinkage mainly changes size. Differential shrinkage changes shape and often causes warpage, bowed walls, or misalignment in assembly features. Engineers watch for differential shrinkage closely in glass-filled materials, long-flow parts, and parts with uneven wall thickness because those designs are much more likely to distort. T<\/p>\n<p\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n<hr \/>\n<ol class=\"footnotes\">\n<li id=\"fn:1\">\n<p><em>mould shrinkage:<\/em> The volumetric reduction of a plastic part as it cools from melt temperature to room temperature, measured as a percentage of the original mold dimension. <a href=\"#fnref1:1\" class=\"footnote-backref\">&#8617;<\/a><\/p>\n<\/li>\n<li id=\"fn:2\">\n<p><em>shrinkage compensation:<\/em> Het vergroten van matrijsholtes met het verwachte krimppercentage, berekend als S = [(Dm \u2013 Dp) \/ Dm] x 100, waarbij Dm de matrijsafmeting is en Dp de onderdeelafmeting. <a href=\"#fnref1:2\" class=\"footnote-backref\">&#8617;<\/a><\/p>\n<\/li>\n<li id=\"fn:3\">\n<p><em>material shrinkage rates:<\/em> Different polymer families have distinct shrinkage behaviors. Amorphous materials typically shrink 0.4-0.7%, while semi-crystalline materials shrink 1.0-3.0%. <a href=\"#fnref1:3\" class=\"footnote-backref\">&#8617;<\/a><\/p>\n<\/li>\n<\/ol>\n<p>&gt;dat onderscheid is belangrijk omdat het ene probleem wordt opgelost door matrijsschaal, terwijl het andere vaak ontwerp- of koelwijzigingen vereist.<\/p>\n<hr style=\"margin:2em 0;border:none;border-top:1px solid #e0e0e0;\" \/>\n<script type=\"application\/ld+json\">{\n    \"@context\": \"https:\\\/\\\/schema.org\",\n    \"@type\": \"FAQPage\",\n    \"mainEntity\": [\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What is a normal shrinkage rate in injection molding?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"A normal shrinkage rate is roughly 0.1% to 3.0%, depending on resin family, filler content, wall thickness, and processing conditions. 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This is \"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What is the difference between overall shrinkage and differential shrinkage?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Overall shrinkage is the general size reduction of the whole part after cooling, while differential shrinkage is uneven contraction between areas or directions of the same part. Overall shrinkage mainly changes size. Differential shrinkage changes shape and often causes warpage, bowed walls, or misalignment in assembly features. Engineers watch for differential shrinkage closely in glass-filled materials, long-flow parts, and parts with uneven wall thickness because those designs are much more l\"\n            }\n        }\n    ]\n}<\/script><\/p>\n<div style=\"background:#f0f4f8;padding:20px;border-radius:8px;margin-top:30px;\">\n<p style=\"margin:0 0 10px;font-size:18px;\"><strong>Need Expert Feedback on Your Mold Design?<\/strong><\/p>\n<p style=\"margin:0 0 10px;\">Ontvang DFM-feedback, krippanalyse en matrijssontwerpbeoordeling van het technische team van ZetarMold.<\/p>\n<p style=\"margin:0;\"><span style=\"background:#2563eb;color:white;padding:12px 24px;border-radius:6px;font-weight:bold;\">Start Your Injection Molding Project \u2192<\/span><\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Als uw gegoten PP-onderdeel bij de eerste proef 0,4 mm te klein uitvalt, is krimp meestal de oorzaak. Injectiegietkrimp is de voorspelbare grootteafname die optreedt wanneer kunststof afkoelt, en goede gereedschapsontwerpteams houden hier al rekening mee voordat het staal wordt bewerkt. Dat klinkt eenvoudig, maar dit is waar veel projecten misgaan. Kopers [\u2026]<\/p>","protected":false},"author":1,"featured_media":53066,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_seopress_robots_primary_cat":"none","_seopress_titles_title":"Injection Mold Shrinkage: Calculate & Compensate | ZetarMold","_seopress_titles_desc":"Learn injection mold shrinkage formula S=[(Dm-Dp)\/Dm]\u00d7100, shrinkage rates by material (PP 1.5-2.5%, ABS 0.4-0.7%), and compensation strategies from ZetarMold.","_seopress_robots_index":"","_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[52],"tags":[112,111,113,114],"meta_box":{"post-to-quiz_to":[]},"_links":{"self":[{"href":"https:\/\/zetarmold.com\/nl\/wp-json\/wp\/v2\/posts\/16194"}],"collection":[{"href":"https:\/\/zetarmold.com\/nl\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/zetarmold.com\/nl\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/zetarmold.com\/nl\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/zetarmold.com\/nl\/wp-json\/wp\/v2\/comments?post=16194"}],"version-history":[{"count":0,"href":"https:\/\/zetarmold.com\/nl\/wp-json\/wp\/v2\/posts\/16194\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/zetarmold.com\/nl\/wp-json\/wp\/v2\/media\/53066"}],"wp:attachment":[{"href":"https:\/\/zetarmold.com\/nl\/wp-json\/wp\/v2\/media?parent=16194"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/zetarmold.com\/nl\/wp-json\/wp\/v2\/categories?post=16194"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/zetarmold.com\/nl\/wp-json\/wp\/v2\/tags?post=16194"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}