{"id":8815,"date":"2026-07-15T13:57:53","date_gmt":"2026-07-15T05:57:53","guid":{"rendered":"https:\/\/topsilsilicone.com\/?p=8815"},"modified":"2026-07-15T13:59:54","modified_gmt":"2026-07-15T05:59:54","slug":"platinum-cured-vs-tin-cured-silicone-total-cost-of-ownership-mold-life","status":"publish","type":"post","link":"https:\/\/topsilsilicone.com\/ar\/platinum-cured-vs-tin-cured-silicone-total-cost-of-ownership-mold-life\/","title":{"rendered":"Platinum-Cured vs. Tin-Cured Silicone: Total Cost of Ownership &amp; Mold Life"},"content":{"rendered":"<p class=\"wp-block-paragraph\">A mold that costs less but fails twice as fast is not always cheaper. It is only cheaper on the invoice.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">When buyers compare platinum-cured and tin-cured silicone, the first question is usually:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u201cWhich silicone has the lower price per kg?\u201d<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">For real mold production, the better question is:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u201cWhich silicone gives me the lower cost per accepted casting?\u201d<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/topsilsilicone.com\/ar\/product\/%d8%b3%d9%8a%d9%84%d9%8a%d9%83%d9%88%d9%86-%d9%85%d8%b9%d8%a7%d9%84%d8%ac%d8%a9-%d8%a7%d9%84%d9%82%d8%b5%d8%af%d9%8a%d8%b1-%d9%84%d8%b5%d9%86%d8%a7%d8%b9%d8%a9-%d8%a7%d9%84%d9%82%d9%88%d8%a7%d9%84\/\">Tin-cured silicone<\/a> usually has a lower upfront price and is a smart choice for many general-purpose molds. Platinum-cured silicone usually costs more per kilogram, but it can reduce total project cost when mold life, dimensional stability, low shrinkage and fewer rejected parts matter.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This guide compares platinum-cured and tin-cured silicone from a practical buyer\u2019s perspective: mold life, failure risk, shrinkage, labor cost, downtime and total cost of ownership.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<div class=\"wp-block-group snippet-answer-box is-vertical is-layout-flex wp-container-core-group-is-layout-4fc3f8e1 wp-block-group-is-layout-flex\">\n<h3 class=\"wp-block-heading snippet-answer-title has-luminous-vivid-orange-color has-text-color has-link-color wp-elements-c857af6fc314faa81be4483b969a4069\">Quick Answer: Which Silicone Is More Cost-Effective?<\/h3>\n\n\n\n<p class=\"snippet-answer-text wp-block-paragraph\">Tin-cured silicone is usually more cost-effective for short-run, low-cost molds where slight shrinkage, shorter mold storage life or lower mold durability is acceptable.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Platinum-cured silicone is usually more cost-effective for precision molds, polyurethane casting, food-contact molds, transparent cut molds, high-value resin casting and repeated production where longer mold life and lower rejection rate reduce the cost per accepted casting.<\/p>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\">So the right question is not only:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u201cWhich silicone is cheaper?\u201d<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0627\u0644\u0633\u0624\u0627\u0644 \u0627\u0644\u0623\u0641\u0636\u0644 \u0647\u0648:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u201cHow many good parts can this mold produce before it tears, shrinks, deforms or loses accuracy?\u201d<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Platinum-Cured vs. Tin-Cured Silicone: The Basic Difference<\/h2>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"http:\/\/topsilsilicone.com\/wp-content\/uploads\/tin-cured-vs-platinum-cured-silicone-basic-difference-1024x666.webp\" alt=\"tin-cured-vs-platinum-cured-silicone-basic-difference\" class=\"wp-image-8826 lazyload\"\/><noscript><img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"666\" src=\"http:\/\/topsilsilicone.com\/wp-content\/uploads\/tin-cured-vs-platinum-cured-silicone-basic-difference-1024x666.webp\" alt=\"tin-cured-vs-platinum-cured-silicone-basic-difference\" class=\"wp-image-8826 lazyload\" srcset=\"https:\/\/topsilsilicone.com\/wp-content\/uploads\/tin-cured-vs-platinum-cured-silicone-basic-difference-1024x666.webp 1024w, https:\/\/topsilsilicone.com\/wp-content\/uploads\/tin-cured-vs-platinum-cured-silicone-basic-difference-300x195.webp 300w, https:\/\/topsilsilicone.com\/wp-content\/uploads\/tin-cured-vs-platinum-cured-silicone-basic-difference-768x499.webp 768w, https:\/\/topsilsilicone.com\/wp-content\/uploads\/tin-cured-vs-platinum-cured-silicone-basic-difference-18x12.webp 18w, https:\/\/topsilsilicone.com\/wp-content\/uploads\/tin-cured-vs-platinum-cured-silicone-basic-difference-600x390.webp 600w, https:\/\/topsilsilicone.com\/wp-content\/uploads\/tin-cured-vs-platinum-cured-silicone-basic-difference.webp 1280w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/noscript><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Both platinum-cured and tin-cured silicone are two-component RTV-2 silicone rubbers widely used for mold making. The difference lies in their curing systems and long-term performance.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Tin-Cured Silicone<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Tin-cured silicone, also called condensation-cured silicone, is commonly used for:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u0642\u0648\u0627\u0644\u0628 \u0627\u0644\u062c\u0635<\/li>\n\n\n\n<li>Wax casting<\/li>\n\n\n\n<li>Concrete molds<\/li>\n\n\n\n<li>General resin crafts<\/li>\n\n\n\n<li>\u0642\u0648\u0627\u0644\u0628 \u0627\u0644\u0632\u064a\u0646\u0629<\/li>\n\n\n\n<li>Short-run mold making<\/li>\n\n\n\n<li>Price-sensitive industrial molds<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Its biggest advantage is lower upfront cost. For simple molds and low-volume casting, tin-cured silicone can be practical, economical and reliable.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Platinum-Cured Silicone<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/topsilsilicone.com\/ar\/product\/%d8%b3%d9%8a%d9%84%d9%8a%d9%83%d9%88%d9%86-%d9%85%d8%b9%d8%a7%d9%84%d8%ac-%d8%a8%d8%a7%d9%84%d8%a8%d9%84%d8%a7%d8%aa%d9%8a%d9%86-%d8%a7%d9%84%d8%b4%d9%81%d8%a7%d9%81\/\">\u0633\u064a\u0644\u064a\u0643\u0648\u0646 \u0645\u0639\u0627\u0644\u062c \u0628\u0627\u0644\u0628\u0644\u0627\u062a\u064a\u0646<\/a>, also called addition-cured silicone, is commonly used for:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Precision mold making<\/li>\n\n\n\n<li>Polyurethane casting<\/li>\n\n\n\n<li>Rapid prototyping<\/li>\n\n\n\n<li>Food-contact molds<\/li>\n\n\n\n<li>Transparent cut molds<\/li>\n\n\n\n<li>High-value resin molds<\/li>\n\n\n\n<li>Repeated industrial casting<\/li>\n\n\n\n<li>Applications requiring low shrinkage<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Its key advantages usually include lower shrinkage, better dimensional stability and longer mold life in demanding applications.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">However, platinum-cured silicone is not automatically the best choice for every project. It usually costs more and can be more sensitive to cure inhibition caused by sulfur clay, latex, amines, uncured resin, some 3D printed masters, certain release agents or contaminated tools.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A professional supplier should not simply recommend platinum silicone because it is more expensive. The right recommendation depends on application, risk and total production cost.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong><a href=\"https:\/\/en.wikipedia.org\/wiki\/Silicone_rubber\" target=\"_blank\" rel=\"noopener\">silicone rubber curing systems<\/a><\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">The Real Buying Metric: Cost per Accepted Casting<\/h2>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"http:\/\/topsilsilicone.com\/wp-content\/uploads\/silicone-mold-cost-per-accepted-casting-formula-1024x512.webp\" alt=\"silicone-mold-cost-per-accepted-casting-formula\" class=\"wp-image-8825 lazyload\"\/><noscript><img decoding=\"async\" width=\"1024\" height=\"512\" src=\"http:\/\/topsilsilicone.com\/wp-content\/uploads\/silicone-mold-cost-per-accepted-casting-formula-1024x512.webp\" alt=\"silicone-mold-cost-per-accepted-casting-formula\" class=\"wp-image-8825 lazyload\" srcset=\"https:\/\/topsilsilicone.com\/wp-content\/uploads\/silicone-mold-cost-per-accepted-casting-formula-1024x512.webp 1024w, https:\/\/topsilsilicone.com\/wp-content\/uploads\/silicone-mold-cost-per-accepted-casting-formula-300x150.webp 300w, https:\/\/topsilsilicone.com\/wp-content\/uploads\/silicone-mold-cost-per-accepted-casting-formula-768x384.webp 768w, https:\/\/topsilsilicone.com\/wp-content\/uploads\/silicone-mold-cost-per-accepted-casting-formula-18x9.webp 18w, https:\/\/topsilsilicone.com\/wp-content\/uploads\/silicone-mold-cost-per-accepted-casting-formula-600x300.webp 600w, https:\/\/topsilsilicone.com\/wp-content\/uploads\/silicone-mold-cost-per-accepted-casting-formula.webp 1472w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/noscript><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Many buyers compare silicone by price per kilogram. That is understandable, but incomplete.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">For mold making, the real cost includes:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Silicone material cost<\/li>\n\n\n\n<li>Mold-making labor<\/li>\n\n\n\n<li>Degassing and pouring time<\/li>\n\n\n\n<li>Curing and demolding time<\/li>\n\n\n\n<li>Mold trimming and preparation<\/li>\n\n\n\n<li>Production downtime during mold replacement<\/li>\n\n\n\n<li>Failed casting cost<\/li>\n\n\n\n<li>Dimensional rejection<\/li>\n\n\n\n<li>Mold remake cost<\/li>\n\n\n\n<li>Customer complaint risk<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">The most useful formula is:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Cost per accepted casting = total mold-related cost \u00f7 number of accepted castings produced<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A lower silicone price does not always mean a lower production cost.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">If a tin-cured silicone mold costs less but produces fewer accepted castings, the cost per accepted casting may become higher than a platinum-cured silicone mold.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Industrial TCO Example: 1,000 PU Prototype Castings<\/strong><strong><\/strong><\/h2>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"http:\/\/topsilsilicone.com\/wp-content\/uploads\/1000-pu-castings-silicone-tco-example-1024x683.webp\" alt=\"1000-pu-castings-silicone-tco-example\" class=\"wp-image-8828 lazyload\"\/><noscript><img decoding=\"async\" width=\"1024\" height=\"683\" src=\"http:\/\/topsilsilicone.com\/wp-content\/uploads\/1000-pu-castings-silicone-tco-example-1024x683.webp\" alt=\"1000-pu-castings-silicone-tco-example\" class=\"wp-image-8828 lazyload\" srcset=\"https:\/\/topsilsilicone.com\/wp-content\/uploads\/1000-pu-castings-silicone-tco-example-1024x683.webp 1024w, https:\/\/topsilsilicone.com\/wp-content\/uploads\/1000-pu-castings-silicone-tco-example-300x200.webp 300w, https:\/\/topsilsilicone.com\/wp-content\/uploads\/1000-pu-castings-silicone-tco-example-768x512.webp 768w, https:\/\/topsilsilicone.com\/wp-content\/uploads\/1000-pu-castings-silicone-tco-example-18x12.webp 18w, https:\/\/topsilsilicone.com\/wp-content\/uploads\/1000-pu-castings-silicone-tco-example-600x400.webp 600w, https:\/\/topsilsilicone.com\/wp-content\/uploads\/1000-pu-castings-silicone-tco-example.webp 1248w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/noscript><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">For polyurethane casting and rapid prototyping, the real cost difference between tin-cured and platinum-cured silicone is often not visible in the silicone price alone.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Let\u2019s use a simplified industrial example.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A prototype workshop needs to produce <strong>1,000 polyurethane parts<\/strong>&nbsp;from silicone molds. The buyer is comparing a lower-cost tin-cured silicone with a premium platinum-cured silicone.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This is not a universal promise. The numbers below are an illustrative calculation to show how total cost of ownership can change when mold life, labor, downtime and rejected parts are included.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Project Assumptions<\/strong><strong><\/strong><\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>\u0627\u0644\u0628\u0646\u062f<\/strong><strong><\/strong><\/td><td><strong>Tin-Cured Silicone<\/strong><strong><\/strong><\/td><td><strong>Premium Platinum-Cured Silicone<\/strong><strong><\/strong><\/td><\/tr><tr><td>Required PU castings<\/td><td>1,000 pcs<\/td><td>1,000 pcs<\/td><\/tr><tr><td>Average mold life<\/td><td>20 castings per mold<\/td><td>80 castings per mold<\/td><\/tr><tr><td>Number of molds required<\/td><td>50 molds<\/td><td>13 molds<\/td><\/tr><tr><td>Silicone used per mold<\/td><td>20 kg<\/td><td>20 kg<\/td><\/tr><tr><td>Silicone price assumption<\/td><td>USD 7\/kg<\/td><td>USD 23\/kg<\/td><\/tr><tr><td>Mold-making labor cost<\/td><td>USD 30 per mold<\/td><td>USD 30 per mold<\/td><\/tr><tr><td>Changeover \/ downtime cost<\/td><td>USD 20 per mold<\/td><td>USD 20 per mold<\/td><\/tr><tr><td>Dimensional rejection rate<\/td><td>3%<\/td><td>0.50%<\/td><\/tr><tr><td>Cost per rejected PU part<\/td><td>USD 30\/pc<\/td><td>USD 30\/pc<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Total Cost Comparison<\/strong><strong><\/strong><\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Cost Category<\/strong><strong><\/strong><\/td><td><strong>Tin-Cured Silicone<\/strong><strong><\/strong><\/td><td><strong>Premium Platinum-Cured Silicone<\/strong><strong><\/strong><\/td><\/tr><tr><td>Silicone material cost<\/td><td>USD 7,000<\/td><td>USD 5,980<\/td><\/tr><tr><td>Mold-making labor cost<\/td><td>USD 1,500<\/td><td>USD 390<\/td><\/tr><tr><td>Changeover \/ downtime cost<\/td><td>USD 1,000<\/td><td>USD 260<\/td><\/tr><tr><td>Rejected part cost<\/td><td>USD 900<\/td><td>USD 150<\/td><\/tr><tr><td><strong>Total project cost<\/strong><strong><\/strong><\/td><td><strong>USD 10,400<\/strong><strong><\/strong><\/td><td><strong>USD 6,780<\/strong><strong><\/strong><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">In this illustrative scenario, the premium platinum-cured silicone reduces the total project cost from <strong>USD 10,400 to USD 6,780<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">That is a total cost reduction of about <strong>34.8%<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0644\u0645\u0627\u0630\u0627\u061f<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Because the platinum-cured silicone option reduces the number of molds from <strong>50 molds to 13 molds<\/strong>. That means fewer mold-making cycles, less labor, less changeover downtime and fewer rejected parts.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The tin-cured silicone looks cheaper when the buyer only compares price per kilogram. But for a 1,000-piece PU casting project, lower mold life can create extra cost through more mold remakes, more downtime and higher dimensional rejection.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">For serious PU casting, rapid prototyping and industrial mold-making projects, buyers should compare <strong>cost per accepted casting<\/strong>, not only <strong>silicone price per kg<\/strong>.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>How Silicone Molds Actually Lose Value<\/strong><strong><\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">To compare mold life correctly, buyers should understand how silicone molds fail in real production.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A mold does not only fail when it completely breaks. It may become unsuitable much earlier.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Common failure modes include:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Tearing at undercuts or thin sections:<\/strong> Complex parts can stretch the mold during demolding. If tear strength or elongation is not enough, small cracks can grow quickly.<\/li>\n\n\n\n<li><strong>Dimensional deformation:<\/strong> The mold may still look usable but no longer produce accurate parts.<\/li>\n\n\n\n<li><strong>Shrinkage during storage:<\/strong> Some molds must be stored for repeat orders. If the mold shrinks, the next casting may not match the original dimensions.<\/li>\n\n\n\n<li><strong>Surface detail loss:<\/strong> Fine texture, engraving, sharp lines or glossy surfaces may gradually become dull after repeated casting.<\/li>\n\n\n\n<li><strong>Difficult demolding:<\/strong> More force during demolding increases the risk of tearing, deformation and surface defects.<\/li>\n\n\n\n<li><strong>Chemical stress from casting materials:<\/strong> Some resins, PU systems or abrasive materials may shorten mold life after repeated use.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This is why mold life should be evaluated by accepted parts, not by whether the mold still physically exists.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">For decorative crafts, slight shrinkage may not matter much. But for precision PU parts, assembly components and prototypes, even small dimensional changes can cause customer rejection.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">In these applications, low shrinkage is not a luxury feature. It is a cost-control factor.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Buyer Decision Guide: When to Choose Tin or Platinum<\/strong><strong><\/strong><\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Buyer Situation<\/strong><strong><\/strong><\/td><td><strong>Better Starting Point<\/strong><strong><\/strong><\/td><td><strong>Why<\/strong><strong><\/strong><\/td><\/tr><tr><td>Lowest upfront cost is the main priority<\/td><td>Tin-cured silicone<\/td><td>Lower initial material cost<\/td><\/tr><tr><td>Simple plaster, wax or decorative molds<\/td><td>Tin-cured silicone<\/td><td>Usually sufficient for short-run use<\/td><\/tr><tr><td>Concrete molds<\/td><td>Tin-cured or high-tear silicone<\/td><td>Depends on mold size, abrasion and demolding force<\/td><\/tr><tr><td>Low-cost resin crafts<\/td><td>Tin-cured or platinum-cured silicone<\/td><td>Depends on budget and expected casting cycles<\/td><\/tr><tr><td>Deep undercut resin molds<\/td><td>Softer platinum-cured silicone<\/td><td>Better flexibility and lower tearing risk<\/td><\/tr><tr><td>High-value epoxy parts<\/td><td>\u0633\u064a\u0644\u064a\u0643\u0648\u0646 \u0645\u0639\u0627\u0644\u062c \u0628\u0627\u0644\u0628\u0644\u0627\u062a\u064a\u0646<\/td><td>Better mold life, detail and dimensional stability<\/td><\/tr><tr><td>PU casting and rapid prototyping<\/td><td>\u0633\u064a\u0644\u064a\u0643\u0648\u0646 \u0645\u0639\u0627\u0644\u062c \u0628\u0627\u0644\u0628\u0644\u0627\u062a\u064a\u0646<\/td><td>Better for precision, repeatability and mold life<\/td><\/tr><tr><td>Transparent cut molds<\/td><td>Transparent platinum-cured silicone<\/td><td>Easier cutting and visual control<\/td><\/tr><tr><td>Food-contact molds<\/td><td>Properly certified platinum-cured silicone system<\/td><td>Food-contact documents matter<\/td><\/tr><tr><td>One-time low-budget mold<\/td><td><a href=\"https:\/\/topsilsilicone.com\/ar\/product\/%d8%b3%d9%8a%d9%84%d9%8a%d9%83%d9%88%d9%86-%d9%85%d8%b9%d8%a7%d9%84%d8%ac%d8%a9-%d8%a7%d9%84%d9%82%d8%b5%d8%af%d9%8a%d8%b1-%d9%84%d9%84%d9%82%d9%88%d8%a7%d9%84%d8%a8-%d8%a7%d9%84%d9%83%d8%a8%d9%8a\/\">Tin-cured silicone<\/a><\/td><td>Lower upfront cost<\/td><\/tr><tr><td>Repeated production or high rejection cost<\/td><td>\u0633\u064a\u0644\u064a\u0643\u0648\u0646 \u0645\u0639\u0627\u0644\u062c \u0628\u0627\u0644\u0628\u0644\u0627\u062a\u064a\u0646<\/td><td>Lower cost per accepted casting may be possible<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">The final choice should always consider casting material, part design, hardness, viscosity, working time, demold time, expected mold life and compliance requirements.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Important Note: Platinum-Cured Does Not Automatically Mean Food-Grade<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Many buyers assume that platinum-cured silicone is automatically food-grade. This is not correct.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Platinum curing is commonly used in food-contact silicone systems, but food-contact suitability depends on:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Final formulation<\/li>\n\n\n\n<li>Cured sample testing<\/li>\n\n\n\n<li>Production control<\/li>\n\n\n\n<li>Applicable regulations<\/li>\n\n\n\n<li>Food type<\/li>\n\n\n\n<li>Contact temperature<\/li>\n\n\n\n<li>Contact time<\/li>\n\n\n\n<li>Supporting documents such as FDA or LFGB test reports where applicable<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u0648\u0628\u0639\u0628\u0627\u0631\u0629 \u0623\u062e\u0631\u0649:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Cure chemistry is not the certificate.<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">If the mold will contact chocolate, candy, cake, ice, oil-based food or other food materials, buyers should confirm the exact food-contact requirement before choosing a silicone grade.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong><a href=\"https:\/\/www.ecfr.gov\/current\/title-21\/chapter-I\/subchapter-B\/part-177\/subpart-C\/section-177.2600\" target=\"_blank\" rel=\"noopener\">FDA 21 CFR 21 CFR 177.2600<\/a><\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong><a href=\"https:\/\/eur-lex.europa.eu\/eli\/reg\/2004\/1935\/oj\/eng\" target=\"_blank\" rel=\"noopener\">Regulation (EC) No 1935\/2004<\/a><\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Replacing Your Current Silicone? Test More Than Price<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Many buyers compare<a href=\"https:\/\/topsilsilicone.com\/ar\/%d8%a7%d9%84%d9%85%d9%86%d8%aa%d8%ac%d8%a7%d8%aa\/%d8%b3%d9%8a%d9%84%d9%8a%d9%83%d9%88%d9%86-%d9%85%d8%b9%d8%a7%d9%84%d8%ac-%d8%a8%d8%a7%d9%84%d8%a8%d9%84%d8%a7%d8%aa%d9%8a%d9%86\/\"> \u0627\u0644\u0628\u0644\u0627\u062a\u064a\u0646 \u0627\u0644\u0645\u0639\u0627\u0644\u062c \u0628\u0627\u0644\u0628\u0644\u0627\u062a\u064a\u0646<\/a> and tin-cured silicone because they are considering replacing an existing brand or supplier.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">In this case, price comparison is only the first step.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Before replacing your current silicone, compare:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Cure system<\/li>\n\n\n\n<li>Mixing ratio<\/li>\n\n\n\n<li>\u0635\u0644\u0627\u0628\u0629 \u0627\u0644\u0634\u0627\u0637\u0626 A<\/li>\n\n\n\n<li>\u0627\u0644\u0644\u0632\u0648\u062c\u0629<\/li>\n\n\n\n<li>Pot life \/ working time<\/li>\n\n\n\n<li>Demold time<\/li>\n\n\n\n<li>\u0642\u0648\u0629 \u0627\u0644\u062a\u0645\u0632\u0642<\/li>\n\n\n\n<li>Tensile strength<\/li>\n\n\n\n<li>\u0627\u0644\u0627\u0633\u062a\u0637\u0627\u0644\u0629<\/li>\n\n\n\n<li>\u0627\u0644\u0627\u0646\u0643\u0645\u0627\u0634<\/li>\n\n\n\n<li>Color or transparency<\/li>\n\n\n\n<li>Cure inhibition risk<\/li>\n\n\n\n<li>Casting material compatibility<\/li>\n\n\n\n<li>Actual mold life in your process<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">The best approach is to test both materials under the same production conditions and compare accepted casting output.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A simple test should record:<\/p>\n\n\n\n<ol start=\"1\" class=\"wp-block-list\">\n<li>Same master model and mold design<\/li>\n\n\n\n<li>Same silicone quantity and processing method<\/li>\n\n\n\n<li>Same casting material<\/li>\n\n\n\n<li>Same demolding method<\/li>\n\n\n\n<li>Number of accepted castings before tearing, deformation or dimensional failure<\/li>\n\n\n\n<li>Final cost per accepted casting<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">This gives buyers a much more reliable comparison than price per kg alone.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Common Mistakes Buyers Make<\/h2>\n\n\n\n<ol start=\"1\" class=\"wp-block-list\">\n<li>Only Comparing Price per kg<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">A lower silicone price may become more expensive if the mold produces fewer accepted castings.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Better approach:<\/strong> Compare cost per accepted casting.<\/p>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li>Ignoring Mold Failure Modes<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">A mold can fail through tearing, deformation, shrinkage, detail loss or poor demolding.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Better approach:<\/strong> Define what \u201cacceptable mold life\u201d means before testing.<\/p>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li>Using Tin-Cured Silicone for Precision Parts Without Testing<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">Tin-cured silicone can work well in many applications, but precision parts need careful validation.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Better approach:<\/strong> Test dimensional stability before mass production.<\/p>\n\n\n\n<ol start=\"4\" class=\"wp-block-list\">\n<li>Choosing Platinum Silicone Without Checking Cure Inhibition<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">Platinum-cured silicone may fail to cure when it contacts incompatible materials.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Better approach:<\/strong> Run a small compatibility test before making the full mold.<\/p>\n\n\n\n<ol start=\"5\" class=\"wp-block-list\">\n<li>Choosing Hardness Only by Habit<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">Many buyers always choose Shore A 20 or Shore A 30 because they used it before. But different parts need different hardness.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Better approach:<\/strong> Choose hardness based on part size, undercuts, demolding difficulty and support requirements.<\/p>\n\n\n\n<ol start=\"6\" class=\"wp-block-list\">\n<li>Not Sharing the Current TDS with the Supplier<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">If you want a replacement grade, your supplier needs to understand the current material.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Better approach:<\/strong> Send your current silicone TDS and explain what you want to improve: price, mold life, hardness, viscosity, cure time or shrinkage.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>How Topsil Helps Buyers Choose the Right Silicone<\/strong><strong><\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Topsil is a 15-year RTV-2 silicone manufacturer supplying both platinum-cured and tin-cured silicone rubber for mold making, resin casting, food molds, polyurethane casting, <a href=\"https:\/\/topsilsilicone.com\/ar\/%d8%a7%d9%84%d8%aa%d8%b7%d8%a8%d9%8a%d9%82%d8%a7%d8%aa\/%d8%b3%d9%8a%d9%84%d9%8a%d9%83%d9%88%d9%86-%d9%84%d9%84%d9%86%d9%85%d8%a7%d8%b0%d8%ac-%d8%a7%d9%84%d8%a3%d9%88%d9%84%d9%8a%d8%a9-%d8%a7%d9%84%d8%b3%d8%b1%d9%8a%d8%b9%d8%a9\/\">\u0627\u0644\u0646\u0645\u0627\u0630\u062c \u0627\u0644\u0623\u0648\u0644\u064a\u0629 \u0627\u0644\u0633\u0631\u064a\u0639\u0629<\/a> and industrial applications.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">We do not recommend platinum-cured silicone simply because it is more expensive.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">For low-cost, short-run and general molds, tin-cured silicone may be the better choice. For precision parts, PU casting, transparent cut molds, food-contact molds or repeated production, platinum-cured silicone may reduce total cost by improving mold life, dimensional stability and casting success rate.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Topsil can help buyers compare:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Platinum-cured vs. tin-cured silicone<\/li>\n\n\n\n<li>\u0635\u0644\u0627\u0628\u0629 \u0627\u0644\u0634\u0627\u0637\u0626 A<\/li>\n\n\n\n<li>\u0627\u0644\u0644\u0632\u0648\u062c\u0629<\/li>\n\n\n\n<li>\u0648\u0642\u062a \u0627\u0644\u0639\u0645\u0644<\/li>\n\n\n\n<li>Demold time<\/li>\n\n\n\n<li>\u0642\u0648\u0629 \u0627\u0644\u062a\u0645\u0632\u0642<\/li>\n\n\n\n<li>\u0627\u0644\u0627\u0633\u062a\u0637\u0627\u0644\u0629<\/li>\n\n\n\n<li>\u0627\u0644\u0627\u0646\u0643\u0645\u0627\u0634<\/li>\n\n\n\n<li>Mold life expectation<\/li>\n\n\n\n<li>Cure inhibition risk<\/li>\n\n\n\n<li>Food-contact document requirements<\/li>\n\n\n\n<li>Cost per accepted casting<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">If you are replacing your current silicone, you can send us your existing TDS and application details. We can help recommend a suitable testing grade and build a simple cost-per-casting comparison.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>What Information Should You Send Before Sampling?<\/strong><strong><\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">To recommend the right silicone, please provide:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Casting material<\/li>\n\n\n\n<li>Part size<\/li>\n\n\n\n<li>Mold structure<\/li>\n\n\n\n<li>Undercuts or thin sections<\/li>\n\n\n\n<li>Required Shore A hardness<\/li>\n\n\n\n<li>Current silicone grade or TDS<\/li>\n\n\n\n<li>Working time requirement<\/li>\n\n\n\n<li>Demold time requirement<\/li>\n\n\n\n<li>Expected casting cycles per mold<\/li>\n\n\n\n<li>Whether vacuum degassing is used<\/li>\n\n\n\n<li>Whether food-contact documents are required<\/li>\n\n\n\n<li>Main problem with the current silicone<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Examples of useful information:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u201cWe cast PU prototype parts and need 50\u201380 castings per mold.\u201d<\/li>\n\n\n\n<li>\u201cOur current tin-cured silicone tears after around 20 castings.\u201d<\/li>\n\n\n\n<li>\u201cWe need lower shrinkage for precision assembly parts.\u201d<\/li>\n\n\n\n<li>\u201cWe need a transparent silicone for cut molds.\u201d<\/li>\n\n\n\n<li>\u201cWe need a food-contact silicone for chocolate molds.\u201d<\/li>\n\n\n\n<li>\u201cWe want to replace our current silicone but keep similar hardness and working time.\u201d<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">The more specific the application, the more accurate the recommendation.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Conclusion: Cheaper per kg or Cheaper per Accepted Part?<\/strong><strong><\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Tin-cured and platinum-cured silicone both have important roles in mold making.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Tin-cured silicone is usually the smarter choice for low-cost, short-run and general-purpose molds. It offers a lower upfront price and works well in many basic applications.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Platinum-cured silicone is usually the smarter choice when mold life, low shrinkage, dimensional accuracy, food-contact suitability, transparency or repeated casting performance matter more than the initial material price.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The key is not to ask:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u201cWhich silicone is cheaper per kg?\u201d<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0627\u0644\u0633\u0624\u0627\u0644 \u0627\u0644\u0623\u0641\u0636\u0644 \u0647\u0648:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u201cWhich silicone gives me the lowest cost per accepted casting?\u201d<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">For simple molds, tin-cured silicone may win.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">For precision, PU casting, repeated production and high-value parts, platinum-cured silicone may reduce the real total cost.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>\u0627\u0644\u0623\u0633\u0626\u0644\u0629 \u0627\u0644\u0634\u0627\u0626\u0639\u0629<\/strong><strong><\/strong><\/h2>\n\n\n<div class=\"wp-block-uagb-faq uagb-faq__outer-wrap uagb-block-c9af9b46 uagb-faq-icon-row-reverse uagb-faq-layout-accordion uagb-faq-expand-first-false uagb-faq-inactive-other-true uagb-faq__wrap uagb-buttons-layout-wrap uagb-faq-equal-height     faq-clean\" data-faqtoggle=\"true\" role=\"tablist\"><script type=\"application\/ld+json\">{\n    \"@context\": \"https:\\\/\\\/schema.org\",\n    \"@type\": \"FAQPage\",\n    \"@id\": \"https:\\\/\\\/topsilsilicone.com\\\/ar\\\/platinum-cured-vs-tin-cured-silicone-total-cost-of-ownership-mold-life\\\/\",\n    \"mainEntity\": [\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Is the platinum cure better than the tin cure?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Not always. Platinum cure is usually better for lower shrinkage, stability, and premium mold performance. Tin cure is often better for general-purpose, cost-sensitive mold making.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"<strong>Is platinum silicone worth the higher price for mold making?<\\\/strong>\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"It depends on the application. If the mold is simple and only needs a few castings, tin-cured silicone may be more economical. If the mold must produce many accurate parts, platinum-cured silicone may reduce total cost by improving mold life and reducing rejection.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"<strong>Which silicone is better for polyurethane casting?<\\\/strong>\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"For polyurethane casting and rapid prototyping, platinum-cured silicone is usually the better starting point because low shrinkage, mold life and dimensional stability are important. Testing is still required because PU systems and mold designs vary.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"<strong>Which silicone is better for epoxy resin molds?<\\\/strong>\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"For low-cost resin crafts, tin-cured silicone may be enough. For high-value epoxy parts, deep undercuts, fine details or longer mold life, platinum-cured silicone may be the better choice.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"<strong>Can tin-cured silicone be used for food molds?<\\\/strong>\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Food-contact molds usually require a properly formulated and tested food-contact silicone system. Platinum-cured silicone is commonly used for food-contact applications, but cure type alone is not a certificate. Always check the actual test reports and applicable regulations.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"<strong>Is tear strength more important than Shore hardness?<\\\/strong>\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Both matter. Shore hardness tells you how soft or firm the silicone is, but tear strength helps determine whether the mold can survive demolding, especially for undercuts, thin sections and complex parts.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"<strong>How do I compare two silicone TDS documents?<\\\/strong>\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Compare cure system, mixing ratio, Shore hardness, viscosity, pot life, demold time, tear strength, tensile strength, elongation, shrinkage and recommended application. Then test both materials under the same production conditions.\"\n            }\n        }\n    ]\n}<\/script><div class=\"wp-block-uagb-faq-child uagb-faq-child__outer-wrap uagb-faq-item uagb-block-e415ceab\" role=\"tab\" tabindex=\"0\"><div class=\"uagb-faq-questions-button uagb-faq-questions\">\t\t\t<span class=\"uagb-icon uagb-faq-icon-wrap\">\n\t\t\t\t\t\t\t\t<svg xmlns=\"https:\/\/www.w3.org\/2000\/svg\" viewbox= \"0 0 448 512\"><path d=\"M432 256c0 17.69-14.33 32.01-32 32.01H256v144c0 17.69-14.33 31.99-32 31.99s-32-14.3-32-31.99v-144H48c-17.67 0-32-14.32-32-32.01s14.33-31.99 32-31.99H192v-144c0-17.69 14.33-32.01 32-32.01s32 14.32 32 32.01v144h144C417.7 224 432 238.3 432 256z\"><\/path><\/svg>\n\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t<span class=\"uagb-icon-active uagb-faq-icon-wrap\">\n\t\t\t\t\t\t\t\t<svg xmlns=\"https:\/\/www.w3.org\/2000\/svg\" viewbox= \"0 0 448 512\"><path d=\"M400 288h-352c-17.69 0-32-14.32-32-32.01s14.31-31.99 32-31.99h352c17.69 0 32 14.3 32 31.99S417.7 288 400 288z\"><\/path><\/svg>\n\t\t\t\t\t\t\t<\/span>\n\t\t\t<h4 class=\"uagb-question\">\u0647\u0644 \u0627\u0644\u0639\u0644\u0627\u062c \u0628\u0627\u0644\u0628\u0644\u0627\u062a\u064a\u0646 \u0623\u0641\u0636\u0644 \u0645\u0646 \u0627\u0644\u0639\u0644\u0627\u062c \u0628\u0627\u0644\u0642\u0635\u062f\u064a\u0631\u061f<\/h4><\/div><div class=\"uagb-faq-content\"><p>\u0644\u064a\u0633 \u062f\u0627\u0626\u0645\u064b\u0627. \u0639\u0627\u062f\u0629\u064b \u0645\u0627 \u062a\u0643\u0648\u0646 \u0627\u0644\u0645\u0639\u0627\u0644\u062c\u0629 \u0628\u0627\u0644\u0628\u0644\u0627\u062a\u064a\u0646 \u0623\u0641\u0636\u0644 \u0645\u0646 \u0623\u062c\u0644 \u062a\u0642\u0644\u064a\u0644 \u0627\u0644\u0627\u0646\u0643\u0645\u0627\u0634 \u0648\u0627\u0644\u062b\u0628\u0627\u062a \u0648\u0623\u062f\u0627\u0621 \u0627\u0644\u0642\u0627\u0644\u0628 \u0627\u0644\u0645\u062a\u0645\u064a\u0632. \u0648\u063a\u0627\u0644\u0628\u064b\u0627 \u0645\u0627 \u062a\u0643\u0648\u0646 \u0645\u0639\u0627\u0644\u062c\u0629 \u0627\u0644\u0642\u0635\u062f\u064a\u0631 \u0623\u0641\u0636\u0644 \u0644\u0635\u0646\u0627\u0639\u0629 \u0627\u0644\u0642\u0648\u0627\u0644\u0628 \u0630\u0627\u062a \u0627\u0644\u0623\u063a\u0631\u0627\u0636 \u0627\u0644\u0639\u0627\u0645\u0629 \u0648\u0627\u0644\u062d\u0633\u0627\u0633\u0629 \u0645\u0646 \u062d\u064a\u062b \u0627\u0644\u062a\u0643\u0644\u0641\u0629.<\/p><\/div><\/div><div class=\"wp-block-uagb-faq-child uagb-faq-child__outer-wrap uagb-faq-item uagb-block-8b974d1b\" role=\"tab\" tabindex=\"0\"><div class=\"uagb-faq-questions-button uagb-faq-questions\">\t\t\t<span class=\"uagb-icon uagb-faq-icon-wrap\">\n\t\t\t\t\t\t\t\t<svg xmlns=\"https:\/\/www.w3.org\/2000\/svg\" viewbox= \"0 0 448 512\"><path d=\"M432 256c0 17.69-14.33 32.01-32 32.01H256v144c0 17.69-14.33 31.99-32 31.99s-32-14.3-32-31.99v-144H48c-17.67 0-32-14.32-32-32.01s14.33-31.99 32-31.99H192v-144c0-17.69 14.33-32.01 32-32.01s32 14.32 32 32.01v144h144C417.7 224 432 238.3 432 256z\"><\/path><\/svg>\n\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t<span class=\"uagb-icon-active uagb-faq-icon-wrap\">\n\t\t\t\t\t\t\t\t<svg xmlns=\"https:\/\/www.w3.org\/2000\/svg\" viewbox= \"0 0 448 512\"><path d=\"M400 288h-352c-17.69 0-32-14.32-32-32.01s14.31-31.99 32-31.99h352c17.69 0 32 14.3 32 31.99S417.7 288 400 288z\"><\/path><\/svg>\n\t\t\t\t\t\t\t<\/span>\n\t\t\t<h4 class=\"uagb-question\"><strong>Is platinum silicone worth the higher price for mold making?<\/strong><\/h4><\/div><div class=\"uagb-faq-content\"><p>It depends on the application. If the mold is simple and only needs a few castings, tin-cured silicone may be more economical. If the mold must produce many accurate parts, platinum-cured silicone may reduce total cost by improving mold life and reducing rejection.<\/p><\/div><\/div><div class=\"wp-block-uagb-faq-child uagb-faq-child__outer-wrap uagb-faq-item uagb-block-d8950e4b\" role=\"tab\" tabindex=\"0\"><div class=\"uagb-faq-questions-button uagb-faq-questions\">\t\t\t<span class=\"uagb-icon uagb-faq-icon-wrap\">\n\t\t\t\t\t\t\t\t<svg xmlns=\"https:\/\/www.w3.org\/2000\/svg\" viewbox= \"0 0 448 512\"><path d=\"M432 256c0 17.69-14.33 32.01-32 32.01H256v144c0 17.69-14.33 31.99-32 31.99s-32-14.3-32-31.99v-144H48c-17.67 0-32-14.32-32-32.01s14.33-31.99 32-31.99H192v-144c0-17.69 14.33-32.01 32-32.01s32 14.32 32 32.01v144h144C417.7 224 432 238.3 432 256z\"><\/path><\/svg>\n\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t<span class=\"uagb-icon-active uagb-faq-icon-wrap\">\n\t\t\t\t\t\t\t\t<svg xmlns=\"https:\/\/www.w3.org\/2000\/svg\" viewbox= \"0 0 448 512\"><path d=\"M400 288h-352c-17.69 0-32-14.32-32-32.01s14.31-31.99 32-31.99h352c17.69 0 32 14.3 32 31.99S417.7 288 400 288z\"><\/path><\/svg>\n\t\t\t\t\t\t\t<\/span>\n\t\t\t<h4 class=\"uagb-question\"><strong>Which silicone is better for polyurethane casting?<\/strong><\/h4><\/div><div class=\"uagb-faq-content\"><p>For polyurethane casting and rapid prototyping, platinum-cured silicone is usually the better starting point because low shrinkage, mold life and dimensional stability are important. Testing is still required because PU systems and mold designs vary.<\/p><\/div><\/div><div class=\"wp-block-uagb-faq-child uagb-faq-child__outer-wrap uagb-faq-item uagb-block-c72757d0\" role=\"tab\" tabindex=\"0\"><div class=\"uagb-faq-questions-button uagb-faq-questions\">\t\t\t<span class=\"uagb-icon uagb-faq-icon-wrap\">\n\t\t\t\t\t\t\t\t<svg xmlns=\"https:\/\/www.w3.org\/2000\/svg\" viewbox= \"0 0 448 512\"><path d=\"M432 256c0 17.69-14.33 32.01-32 32.01H256v144c0 17.69-14.33 31.99-32 31.99s-32-14.3-32-31.99v-144H48c-17.67 0-32-14.32-32-32.01s14.33-31.99 32-31.99H192v-144c0-17.69 14.33-32.01 32-32.01s32 14.32 32 32.01v144h144C417.7 224 432 238.3 432 256z\"><\/path><\/svg>\n\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t<span class=\"uagb-icon-active uagb-faq-icon-wrap\">\n\t\t\t\t\t\t\t\t<svg xmlns=\"https:\/\/www.w3.org\/2000\/svg\" viewbox= \"0 0 448 512\"><path d=\"M400 288h-352c-17.69 0-32-14.32-32-32.01s14.31-31.99 32-31.99h352c17.69 0 32 14.3 32 31.99S417.7 288 400 288z\"><\/path><\/svg>\n\t\t\t\t\t\t\t<\/span>\n\t\t\t<h4 class=\"uagb-question\"><strong>Which silicone is better for epoxy resin molds?<\/strong><\/h4><\/div><div class=\"uagb-faq-content\"><p>For low-cost resin crafts, tin-cured silicone may be enough. For high-value epoxy parts, deep undercuts, fine details or longer mold life, platinum-cured silicone may be the better choice.<\/p><\/div><\/div><div class=\"wp-block-uagb-faq-child uagb-faq-child__outer-wrap uagb-faq-item uagb-block-c01bb64d\" role=\"tab\" tabindex=\"0\"><div class=\"uagb-faq-questions-button uagb-faq-questions\">\t\t\t<span class=\"uagb-icon uagb-faq-icon-wrap\">\n\t\t\t\t\t\t\t\t<svg xmlns=\"https:\/\/www.w3.org\/2000\/svg\" viewbox= \"0 0 448 512\"><path d=\"M432 256c0 17.69-14.33 32.01-32 32.01H256v144c0 17.69-14.33 31.99-32 31.99s-32-14.3-32-31.99v-144H48c-17.67 0-32-14.32-32-32.01s14.33-31.99 32-31.99H192v-144c0-17.69 14.33-32.01 32-32.01s32 14.32 32 32.01v144h144C417.7 224 432 238.3 432 256z\"><\/path><\/svg>\n\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t<span class=\"uagb-icon-active uagb-faq-icon-wrap\">\n\t\t\t\t\t\t\t\t<svg xmlns=\"https:\/\/www.w3.org\/2000\/svg\" viewbox= \"0 0 448 512\"><path d=\"M400 288h-352c-17.69 0-32-14.32-32-32.01s14.31-31.99 32-31.99h352c17.69 0 32 14.3 32 31.99S417.7 288 400 288z\"><\/path><\/svg>\n\t\t\t\t\t\t\t<\/span>\n\t\t\t<h4 class=\"uagb-question\"><strong>Can tin-cured silicone be used for food molds?<\/strong><\/h4><\/div><div class=\"uagb-faq-content\"><p>Food-contact molds usually require a properly formulated and tested food-contact silicone system. Platinum-cured silicone is commonly used for food-contact applications, but cure type alone is not a certificate. Always check the actual test reports and applicable regulations.<\/p><\/div><\/div><div class=\"wp-block-uagb-faq-child uagb-faq-child__outer-wrap uagb-faq-item uagb-block-03c0dc00\" role=\"tab\" tabindex=\"0\"><div class=\"uagb-faq-questions-button uagb-faq-questions\">\t\t\t<span class=\"uagb-icon uagb-faq-icon-wrap\">\n\t\t\t\t\t\t\t\t<svg xmlns=\"https:\/\/www.w3.org\/2000\/svg\" viewbox= \"0 0 448 512\"><path d=\"M432 256c0 17.69-14.33 32.01-32 32.01H256v144c0 17.69-14.33 31.99-32 31.99s-32-14.3-32-31.99v-144H48c-17.67 0-32-14.32-32-32.01s14.33-31.99 32-31.99H192v-144c0-17.69 14.33-32.01 32-32.01s32 14.32 32 32.01v144h144C417.7 224 432 238.3 432 256z\"><\/path><\/svg>\n\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t<span class=\"uagb-icon-active uagb-faq-icon-wrap\">\n\t\t\t\t\t\t\t\t<svg xmlns=\"https:\/\/www.w3.org\/2000\/svg\" viewbox= \"0 0 448 512\"><path d=\"M400 288h-352c-17.69 0-32-14.32-32-32.01s14.31-31.99 32-31.99h352c17.69 0 32 14.3 32 31.99S417.7 288 400 288z\"><\/path><\/svg>\n\t\t\t\t\t\t\t<\/span>\n\t\t\t<h4 class=\"uagb-question\"><strong>Is tear strength more important than Shore hardness?<\/strong><\/h4><\/div><div class=\"uagb-faq-content\"><p>Both matter. Shore hardness tells you how soft or firm the silicone is, but tear strength helps determine whether the mold can survive demolding, especially for undercuts, thin sections and complex parts.<\/p><\/div><\/div><div class=\"wp-block-uagb-faq-child uagb-faq-child__outer-wrap uagb-faq-item uagb-block-3d761028\" role=\"tab\" tabindex=\"0\"><div class=\"uagb-faq-questions-button uagb-faq-questions\">\t\t\t<span class=\"uagb-icon uagb-faq-icon-wrap\">\n\t\t\t\t\t\t\t\t<svg xmlns=\"https:\/\/www.w3.org\/2000\/svg\" viewbox= \"0 0 448 512\"><path d=\"M432 256c0 17.69-14.33 32.01-32 32.01H256v144c0 17.69-14.33 31.99-32 31.99s-32-14.3-32-31.99v-144H48c-17.67 0-32-14.32-32-32.01s14.33-31.99 32-31.99H192v-144c0-17.69 14.33-32.01 32-32.01s32 14.32 32 32.01v144h144C417.7 224 432 238.3 432 256z\"><\/path><\/svg>\n\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t<span class=\"uagb-icon-active uagb-faq-icon-wrap\">\n\t\t\t\t\t\t\t\t<svg xmlns=\"https:\/\/www.w3.org\/2000\/svg\" viewbox= \"0 0 448 512\"><path d=\"M400 288h-352c-17.69 0-32-14.32-32-32.01s14.31-31.99 32-31.99h352c17.69 0 32 14.3 32 31.99S417.7 288 400 288z\"><\/path><\/svg>\n\t\t\t\t\t\t\t<\/span>\n\t\t\t<h4 class=\"uagb-question\"><strong>How do I compare two silicone TDS documents?<\/strong><\/h4><\/div><div class=\"uagb-faq-content\"><p>Compare cure system, mixing ratio, Shore hardness, viscosity, pot life, demold time, tear strength, tensile strength, elongation, shrinkage and recommended application. Then test both materials under the same production conditions.<\/p><\/div><\/div><\/div>\n\n\n<ul class=\"wp-block-list\"><\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<div id=\"get-working-time-recommendation\" class=\"wp-block-uagb-container uagb-block-b4dc12aa alignwide uagb-is-root-container\">\n<div class=\"wp-block-uagb-container uagb-block-f92b486d\">\n<div class=\"wp-block-group is-vertical is-layout-flex wp-container-core-group-is-layout-4fc3f8e1 wp-block-group-is-layout-flex\">\n<div class=\"wp-block-uagb-advanced-heading uagb-block-119dac23\"><h3 class=\"uagb-heading-text\">Need help choosing between platinum-cured and tin-cured silicone?<\/h3><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Send Topsil your current TDS, casting material, silicone consumption per mold, expected mold life and production quantity. We can help you compare cost per accepted casting and recommend a suitable RTV-2 silicone grade for testing.<\/p>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-uagb-container uagb-block-6ddc3c15\">\n<div class=\"wp-block-uagb-buttons uagb-buttons__outer-wrap uagb-btn__default-btn uagb-btn-tablet__default-btn uagb-btn-mobile__default-btn uagb-block-6b0377bb\"><div class=\"uagb-buttons__wrap uagb-buttons-layout-wrap\">\n<div class=\"wp-block-uagb-buttons-child uagb-buttons__outer-wrap uagb-block-a377bc19 wp-block-button\"><div class=\"uagb-button__wrapper\"><a class=\"uagb-buttons-repeater wp-block-button__link\" aria-label=\"\" href=\"https:\/\/topsilsilicone.com\/ar\/%d8%a7%d9%84%d8%af%d8%b9%d9%85-%d8%a7%d9%84%d9%81%d9%86%d9%8a\/\" rel=\"follow noopener\" target=\"_self\" role=\"button\"><div class=\"uagb-button__link\"><code>\u0627\u0637\u0644\u0628 \u0627\u0644\u062a\u0648\u0635\u064a\u0629 \u0628\u0627\u0644\u062a\u0642\u062f\u064a\u0631<\/code><\/div><\/a><\/div><\/div>\n<\/div><\/div>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>A mold that costs less but fails twice as fast is not always cheaper. It is only cheaper on the invoice. When buyers compare platinum-cured and tin-cured silicone, the first question is usually: \u201cWhich silicone has the lower price per kg?\u201d For real mold production, the better question is: \u201cWhich silicone gives me the lower [&hellip;]<\/p>","protected":false},"author":4,"featured_media":8827,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_uag_custom_page_level_css":"","footnotes":""},"categories":[91],"tags":[],"class_list":["post-8815","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-material-selection"],"uagb_featured_image_src":{"full":["https:\/\/topsilsilicone.com\/wp-content\/uploads\/platinum-vs-tin-cure-silicone-tco.webp",1376,768,false],"thumbnail":["https:\/\/topsilsilicone.com\/wp-content\/uploads\/platinum-vs-tin-cure-silicone-tco-150x150.webp",150,150,true],"medium":["https:\/\/topsilsilicone.com\/wp-content\/uploads\/platinum-vs-tin-cure-silicone-tco-300x167.webp",300,167,true],"medium_large":["https:\/\/topsilsilicone.com\/wp-content\/uploads\/platinum-vs-tin-cure-silicone-tco-768x429.webp",768,429,true],"large":["https:\/\/topsilsilicone.com\/wp-content\/uploads\/platinum-vs-tin-cure-silicone-tco-1024x572.webp",800,447,true],"1536x1536":["https:\/\/topsilsilicone.com\/wp-content\/uploads\/platinum-vs-tin-cure-silicone-tco.webp",1376,768,false],"2048x2048":["https:\/\/topsilsilicone.com\/wp-content\/uploads\/platinum-vs-tin-cure-silicone-tco.webp",1376,768,false],"trp-custom-language-flag":["https:\/\/topsilsilicone.com\/wp-content\/uploads\/platinum-vs-tin-cure-silicone-tco-18x10.webp",18,10,true],"woocommerce_thumbnail":["https:\/\/topsilsilicone.com\/wp-content\/uploads\/platinum-vs-tin-cure-silicone-tco-300x300.webp",300,300,true],"woocommerce_single":["https:\/\/topsilsilicone.com\/wp-content\/uploads\/platinum-vs-tin-cure-silicone-tco-600x335.webp",600,335,true],"woocommerce_gallery_thumbnail":["https:\/\/topsilsilicone.com\/wp-content\/uploads\/platinum-vs-tin-cure-silicone-tco-100x100.webp",100,100,true]},"uagb_author_info":{"display_name":"Michael","author_link":"https:\/\/topsilsilicone.com\/ar\/author\/michael\/"},"uagb_comment_info":0,"uagb_excerpt":"A mold that costs less but fails twice as fast is not always cheaper. It is only cheaper on the invoice. When buyers compare platinum-cured and tin-cured silicone, the first question is usually: \u201cWhich silicone has the lower price per kg?\u201d For real mold production, the better question is: \u201cWhich silicone gives me the lower&hellip;","_links":{"self":[{"href":"https:\/\/topsilsilicone.com\/ar\/wp-json\/wp\/v2\/posts\/8815","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/topsilsilicone.com\/ar\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/topsilsilicone.com\/ar\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/topsilsilicone.com\/ar\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/topsilsilicone.com\/ar\/wp-json\/wp\/v2\/comments?post=8815"}],"version-history":[{"count":5,"href":"https:\/\/topsilsilicone.com\/ar\/wp-json\/wp\/v2\/posts\/8815\/revisions"}],"predecessor-version":[{"id":8830,"href":"https:\/\/topsilsilicone.com\/ar\/wp-json\/wp\/v2\/posts\/8815\/revisions\/8830"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/topsilsilicone.com\/ar\/wp-json\/wp\/v2\/media\/8827"}],"wp:attachment":[{"href":"https:\/\/topsilsilicone.com\/ar\/wp-json\/wp\/v2\/media?parent=8815"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/topsilsilicone.com\/ar\/wp-json\/wp\/v2\/categories?post=8815"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/topsilsilicone.com\/ar\/wp-json\/wp\/v2\/tags?post=8815"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}