{"id":1357,"date":"2026-06-30T07:59:49","date_gmt":"2026-06-30T07:59:49","guid":{"rendered":"https:\/\/xflsrmolding.com\/?p=1357"},"modified":"2026-06-30T08:01:06","modified_gmt":"2026-06-30T08:01:06","slug":"how-lsr-molding-companies-design-prevents-silicone-part-defects","status":"publish","type":"post","link":"https:\/\/xflsrmolding.com\/nb\/how-lsr-molding-companies-design-prevents-silicone-part-defects\/","title":{"rendered":"Hvordan bedre formdesign forhindrer feil i silikondeler"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"1357\" class=\"elementor elementor-1357\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-4da0dfa e-flex e-con-boxed e-con e-parent\" data-id=\"4da0dfa\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element 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href=\"https:\/\/xflsrmolding.com\/\">\n\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">Home<\/span>\n\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item elementor-inline-item\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/xflsrmolding.com\/blog\/\">\n\n\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-chevron-right\" viewBox=\"0 0 320 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M285.476 272.971L91.132 467.314c-9.373 9.373-24.569 9.373-33.941 0l-22.667-22.667c-9.357-9.357-9.375-24.522-.04-33.901L188.505 256 34.484 101.255c-9.335-9.379-9.317-24.544.04-33.901l22.667-22.667c9.373-9.373 24.569-9.373 33.941 0L285.475 239.03c9.373 9.372 9.373 24.568.001 33.941z\"><\/path><\/svg>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">Blog<\/span>\n\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item elementor-inline-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-chevron-right\" viewBox=\"0 0 320 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M285.476 272.971L91.132 467.314c-9.373 9.373-24.569 9.373-33.941 0l-22.667-22.667c-9.357-9.357-9.375-24.522-.04-33.901L188.505 256 34.484 101.255c-9.335-9.379-9.317-24.544.04-33.901l22.667-22.667c9.373-9.373 24.569-9.373 33.941 0L285.475 239.03c9.373 9.372 9.373 24.568.001 33.941z\"><\/path><\/svg>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">LSR Manufacturing Process Explained Simply<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t<\/ul>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-2ff8d830 e-flex e-con-boxed e-con e-parent\" data-id=\"2ff8d830\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-28b4325c elementor-widget elementor-widget-heading\" data-id=\"28b4325c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">LSR Molding Companies: How Better Mold Design Prevents Silicone Part Defects<\/h1>\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-6cfc7dee e-flex e-con-boxed e-con e-parent\" data-id=\"6cfc7dee\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-6b8d6ce1 elementor-share-buttons--view-icon elementor-share-buttons--shape-rounded 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27.614-3.573-48.081-9.747-84.143-51.98-84.143-102.985v-1.299c13.969 7.797 30.214 12.67 47.431 13.319-28.264-18.843-46.781-51.005-46.781-87.391 0-19.492 5.197-37.36 14.294-52.954 51.655 63.675 129.3 105.258 216.365 109.807-1.624-7.797-2.599-15.918-2.599-24.04 0-57.828 46.782-104.934 104.934-104.934 30.213 0 57.502 12.67 76.67 33.137 23.715-4.548 46.456-13.32 66.599-25.34-7.798 24.366-24.366 44.833-46.132 57.827 21.117-2.273 41.584-8.122 60.426-16.243-14.292 20.791-32.161 39.308-52.628 54.253z\"><\/path><\/svg>\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-grid-item\">\n\t\t\t\t\t\t<div\n\t\t\t\t\t\t\tclass=\"elementor-share-btn elementor-share-btn_linkedin\"\n\t\t\t\t\t\t\trole=\"button\"\n\t\t\t\t\t\t\ttabindex=\"0\"\n\t\t\t\t\t\t\taria-label=\"Share on linkedin\"\n\t\t\t\t\t\t>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-share-btn__icon\">\n\t\t\t\t\t\t\t\t<svg class=\"e-font-icon-svg 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data-widget_type=\"table-of-contents.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-toc__header\">\n\t\t\t<h4 class=\"elementor-toc__header-title\">\n\t\t\t\tTable of Contents\t\t\t<\/h4>\n\t\t\t\t\t\t\t<div class=\"elementor-toc__toggle-button elementor-toc__toggle-button--expand\" role=\"button\" tabindex=\"0\" aria-controls=\"elementor-toc__1490d65c\" aria-expanded=\"true\" aria-label=\"Open table of contents\"><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-chevron-down\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M207.029 381.476L12.686 187.132c-9.373-9.373-9.373-24.569 0-33.941l22.667-22.667c9.357-9.357 24.522-9.375 33.901-.04L224 284.505l154.745-154.021c9.379-9.335 24.544-9.317 33.901.04l22.667 22.667c9.373 9.373 9.373 24.569 0 33.941L240.971 381.476c-9.373 9.372-24.569 9.372-33.942 0z\"><\/path><\/svg><\/div>\n\t\t\t\t<div class=\"elementor-toc__toggle-button 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696 858 500S696 142 500 142 142 304 142 500H25C25 237 238 25 500 25S975 237 975 500 763 975 500 975Z\"><\/path><\/svg>\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-518fc89a e-con-full e-flex e-con e-child\" data-id=\"518fc89a\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-6d9816a6 elementor-widget elementor-widget-image\" data-id=\"6d9816a6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/xflsrmolding.com\/technology\/\">\n\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"1080\" height=\"720\" src=\"https:\/\/xflsrmolding.com\/wp-content\/uploads\/2026\/04\/CNC-machining-for-high-strength-applications.jpg\" class=\"attachment-full size-full wp-image-1195\" alt=\"Top LSR Injection Molding Companies for Cost-Effective Solutions\" srcset=\"https:\/\/xflsrmolding.com\/wp-content\/uploads\/2026\/04\/CNC-machining-for-high-strength-applications.jpg 1080w, https:\/\/xflsrmolding.com\/wp-content\/uploads\/2026\/04\/CNC-machining-for-high-strength-applications-300x200.jpg 300w, https:\/\/xflsrmolding.com\/wp-content\/uploads\/2026\/04\/CNC-machining-for-high-strength-applications-1024x683.jpg 1024w, https:\/\/xflsrmolding.com\/wp-content\/uploads\/2026\/04\/CNC-machining-for-high-strength-applications-768x512.jpg 768w, https:\/\/xflsrmolding.com\/wp-content\/uploads\/2026\/04\/CNC-machining-for-high-strength-applications-18x12.jpg 18w\" sizes=\"(max-width: 1080px) 100vw, 1080px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-1a5a788 e-flex e-con-boxed e-con e-parent\" data-id=\"1a5a788\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-48399133 elementor-widget elementor-widget-text-editor\" data-id=\"48399133\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h2 class=\"PDq2pG_selectionAnchorContainer\" data-section-id=\"13ax1s5\" data-start=\"277\" data-end=\"292\">Introduction<\/h2><p data-start=\"294\" data-end=\"538\">When you search for <a href=\"https:\/\/xflsrmolding.com\/technology\/\"><strong data-start=\"314\" data-end=\"339\">lsr molding companies<\/strong><\/a>, you usually want a supplier who can make stable parts, not just quote a low price. But in real production, the problem is rarely the machine. The problem starts when the part design meets the mold.<\/p><p data-start=\"540\" data-end=\"819\">In daily work, I often see the same pattern. A customer brings a drawing. The part looks simple. But after sampling, defects appear\u2014flash, air traps, or size drift. The customer then thinks the process is unstable. In most cases, the real issue is already inside the mold design.<\/p><p data-start=\"821\" data-end=\"1031\">This article explains how we think in production: from customer needs, to mold challenges, to technical decisions, and finally to real use cases. You will see how manufacturing experience builds stable results.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-2115d6c9 e-flex e-con-boxed e-con e-parent\" data-id=\"2115d6c9\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-2b6eeacd elementor-widget elementor-widget-text-editor\" data-id=\"2b6eeacd\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h2 class=\"PDq2pG_selectionAnchorContainer\" data-section-id=\"o96qqc\" data-start=\"1038\" data-end=\"1095\">Why Defects Matter When Choosing LSR Molding Companies<\/h2><p data-start=\"1097\" data-end=\"1230\">Most buyers compare <a href=\"https:\/\/xflsrmolding.com\/technology\/\"><strong data-start=\"1117\" data-end=\"1142\">lsr molding companies<\/strong><\/a> by price, lead time, or machine size. But in real production, we see a different truth.<\/p><p data-start=\"1232\" data-end=\"1464\">A stable silicone part depends on mold design first. The machine only follows what the mold allows. If the parting line is weak, flash will appear. If venting is poor, air will stay inside. If temperature is uneven, size will drift.<\/p><p data-start=\"1466\" data-end=\"1643\">From the buyer side, defects look random. From the engineering side, they are predictable. That is why experienced suppliers spend more time in design review than in production.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-56fc3b3 e-flex e-con-boxed e-con e-parent\" data-id=\"56fc3b3\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-399fd691 elementor-widget elementor-widget-text-editor\" data-id=\"399fd691\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h2 class=\"PDq2pG_selectionAnchorContainer\" data-section-id=\"1ne1wm2\" data-start=\"1650\" data-end=\"1715\">How Best LSR Molding Companies Reduce Flash Before Production<\/h2><p data-start=\"1717\" data-end=\"1854\">Customer need: clean sealing surface with no trimming<br data-start=\"1770\" data-end=\"1773\" \/>Manufacturing challenge: silicone flows too easily and leaks through small gaps<\/p><p data-start=\"1856\" data-end=\"1960\">Flash is one of the first problems we check. It usually comes from poor parting line fit or insert gaps.<\/p><p data-start=\"1962\" data-end=\"1987\">We focus on three points:<\/p><ul data-start=\"1988\" data-end=\"2092\"><li data-section-id=\"brly6v\" data-start=\"1988\" data-end=\"2020\">Tight parting line machining<\/li><li data-section-id=\"c6h7ie\" data-start=\"2021\" data-end=\"2051\">Controlled insert matching<\/li><li data-section-id=\"p03dzi\" data-start=\"2052\" data-end=\"2092\">Stable vacuum sealing during molding<\/li><\/ul><p data-start=\"2094\" data-end=\"2335\">One case was a small food-grade sealing cap. The first sample had flash around the edge. Instead of lowering pressure, we reworked the insert fit and improved alignment accuracy. After that, the flash disappeared without changing cycle time.<\/p><p data-start=\"2337\" data-end=\"2429\">In practice, flash control is not a machine setting problem. It is a mold precision problem.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-22c642c5 e-flex e-con-boxed e-con e-parent\" data-id=\"22c642c5\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-429cfdbc elementor-widget elementor-widget-heading\" data-id=\"429cfdbc\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Related Articles\uff1a<\/h3>\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-7ef20dd1 e-flex e-con-boxed e-con e-parent\" data-id=\"7ef20dd1\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-4a876b2b elementor-grid-4 elementor-grid-tablet-2 elementor-grid-mobile-1 elementor-widget elementor-widget-portfolio\" data-id=\"4a876b2b\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;columns&quot;:&quot;4&quot;,&quot;item_ratio&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:0.7,&quot;sizes&quot;:[]},&quot;row_gap&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:15,&quot;sizes&quot;:[]},&quot;columns_tablet&quot;:&quot;2&quot;,&quot;columns_mobile&quot;:&quot;1&quot;,&quot;item_gap&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]}}\" data-widget_type=\"portfolio.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-portfolio elementor-grid elementor-posts-container\">\n\t\t\t\t<article class=\"elementor-portfolio-item elementor-post  post-1399 post type-post status-publish format-standard has-post-thumbnail hentry category-uncategorized\">\n\t\t\t<a class=\"elementor-post__thumbnail__link\" href=\"https:\/\/xflsrmolding.com\/nb\/medical-lsr-molding-prevent-mold-defects\/\">\n\t\t\t\t<div class=\"elementor-portfolio-item__img elementor-post__thumbnail\">\n\t\t\t<img decoding=\"async\" width=\"1413\" height=\"1113\" src=\"https:\/\/xflsrmolding.com\/wp-content\/uploads\/2026\/08\/medical-lsr-molding.jpg\" class=\"attachment-full size-full wp-image-1401\" alt=\"Medical LSR Molding: Preventing Mold Defects\" srcset=\"https:\/\/xflsrmolding.com\/wp-content\/uploads\/2026\/08\/medical-lsr-molding.jpg 1413w, https:\/\/xflsrmolding.com\/wp-content\/uploads\/2026\/08\/medical-lsr-molding-300x236.jpg 300w, https:\/\/xflsrmolding.com\/wp-content\/uploads\/2026\/08\/medical-lsr-molding-1024x807.jpg 1024w, https:\/\/xflsrmolding.com\/wp-content\/uploads\/2026\/08\/medical-lsr-molding-768x605.jpg 768w, https:\/\/xflsrmolding.com\/wp-content\/uploads\/2026\/08\/medical-lsr-molding-15x12.jpg 15w\" sizes=\"(max-width: 1413px) 100vw, 1413px\" \/>\t\t<\/div>\n\t\t\t\t<div class=\"elementor-portfolio-item__overlay\">\n\t\t\t\t<h3 class=\"elementor-portfolio-item__title\">\n\t\tHow Medical LSR Molding Companies Prevent Mold Defects\t\t<\/h3>\n\t\t\t\t<\/div>\n\t\t\t\t<\/a>\n\t\t<\/article>\n\t\t\t\t<article class=\"elementor-portfolio-item elementor-post  post-1386 post type-post status-publish format-standard has-post-thumbnail hentry category-uncategorized\">\n\t\t\t<a class=\"elementor-post__thumbnail__link\" href=\"https:\/\/xflsrmolding.com\/nb\/custom-liquid-silicone-molding-complex-parts\/\">\n\t\t\t\t<div class=\"elementor-portfolio-item__img elementor-post__thumbnail\">\n\t\t\t<img decoding=\"async\" width=\"1413\" height=\"1113\" src=\"https:\/\/xflsrmolding.com\/wp-content\/uploads\/2026\/08\/custom-liquid-silicone-molding.jpg\" class=\"attachment-full size-full wp-image-1395\" alt=\"Custom Liquid Silicone Molding for Complex Parts\" srcset=\"https:\/\/xflsrmolding.com\/wp-content\/uploads\/2026\/08\/custom-liquid-silicone-molding.jpg 1413w, https:\/\/xflsrmolding.com\/wp-content\/uploads\/2026\/08\/custom-liquid-silicone-molding-300x236.jpg 300w, https:\/\/xflsrmolding.com\/wp-content\/uploads\/2026\/08\/custom-liquid-silicone-molding-1024x807.jpg 1024w, https:\/\/xflsrmolding.com\/wp-content\/uploads\/2026\/08\/custom-liquid-silicone-molding-768x605.jpg 768w, https:\/\/xflsrmolding.com\/wp-content\/uploads\/2026\/08\/custom-liquid-silicone-molding-15x12.jpg 15w\" sizes=\"(max-width: 1413px) 100vw, 1413px\" \/>\t\t<\/div>\n\t\t\t\t<div class=\"elementor-portfolio-item__overlay\">\n\t\t\t\t<h3 class=\"elementor-portfolio-item__title\">\n\t\tHow We Turn Complex Designs Into Production-Ready Parts\t\t<\/h3>\n\t\t\t\t<\/div>\n\t\t\t\t<\/a>\n\t\t<\/article>\n\t\t\t\t<article class=\"elementor-portfolio-item elementor-post  post-1376 post type-post status-publish format-standard has-post-thumbnail hentry category-uncategorized\">\n\t\t\t<a class=\"elementor-post__thumbnail__link\" href=\"https:\/\/xflsrmolding.com\/nb\/medical-grade-lsr-molding-what-most-teams-miss-before-tooling\/\">\n\t\t\t\t<div class=\"elementor-portfolio-item__img elementor-post__thumbnail\">\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1254\" height=\"1254\" src=\"https:\/\/xflsrmolding.com\/wp-content\/uploads\/2026\/07\/medical-grade-lsr-molding-design-review.jpg\" class=\"attachment-full size-full wp-image-1378\" alt=\"medical grade LSR molding cold runner system\" srcset=\"https:\/\/xflsrmolding.com\/wp-content\/uploads\/2026\/07\/medical-grade-lsr-molding-design-review.jpg 1254w, https:\/\/xflsrmolding.com\/wp-content\/uploads\/2026\/07\/medical-grade-lsr-molding-design-review-300x300.jpg 300w, https:\/\/xflsrmolding.com\/wp-content\/uploads\/2026\/07\/medical-grade-lsr-molding-design-review-1024x1024.jpg 1024w, https:\/\/xflsrmolding.com\/wp-content\/uploads\/2026\/07\/medical-grade-lsr-molding-design-review-150x150.jpg 150w, https:\/\/xflsrmolding.com\/wp-content\/uploads\/2026\/07\/medical-grade-lsr-molding-design-review-768x768.jpg 768w, https:\/\/xflsrmolding.com\/wp-content\/uploads\/2026\/07\/medical-grade-lsr-molding-design-review-12x12.jpg 12w\" sizes=\"(max-width: 1254px) 100vw, 1254px\" \/>\t\t<\/div>\n\t\t\t\t<div class=\"elementor-portfolio-item__overlay\">\n\t\t\t\t<h3 class=\"elementor-portfolio-item__title\">\n\t\tMedical Grade LSR Molding: What Most Teams Miss Before Tooling\t\t<\/h3>\n\t\t\t\t<\/div>\n\t\t\t\t<\/a>\n\t\t<\/article>\n\t\t\t\t<article class=\"elementor-portfolio-item elementor-post  post-1362 post type-post status-publish format-standard has-post-thumbnail hentry category-uncategorized\">\n\t\t\t<a class=\"elementor-post__thumbnail__link\" href=\"https:\/\/xflsrmolding.com\/nb\/silicone-parts-why-lsr-molding-companies-fail-and-how-to-choose-right\/\">\n\t\t\t\t<div class=\"elementor-portfolio-item__img elementor-post__thumbnail\">\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1080\" height=\"720\" src=\"https:\/\/xflsrmolding.com\/wp-content\/uploads\/2026\/06\/lsr_silicone_valve_mold_design_structure.jpg\" class=\"attachment-full size-full wp-image-1371\" alt=\"lsr silicone valve mold design structure\" srcset=\"https:\/\/xflsrmolding.com\/wp-content\/uploads\/2026\/06\/lsr_silicone_valve_mold_design_structure.jpg 1080w, https:\/\/xflsrmolding.com\/wp-content\/uploads\/2026\/06\/lsr_silicone_valve_mold_design_structure-300x200.jpg 300w, https:\/\/xflsrmolding.com\/wp-content\/uploads\/2026\/06\/lsr_silicone_valve_mold_design_structure-1024x683.jpg 1024w, https:\/\/xflsrmolding.com\/wp-content\/uploads\/2026\/06\/lsr_silicone_valve_mold_design_structure-768x512.jpg 768w, https:\/\/xflsrmolding.com\/wp-content\/uploads\/2026\/06\/lsr_silicone_valve_mold_design_structure-18x12.jpg 18w\" sizes=\"(max-width: 1080px) 100vw, 1080px\" \/>\t\t<\/div>\n\t\t\t\t<div class=\"elementor-portfolio-item__overlay\">\n\t\t\t\t<h3 class=\"elementor-portfolio-item__title\">\n\t\tWhy LSR Molding Companies Fail And How to Choose Right\t\t<\/h3>\n\t\t\t\t<\/div>\n\t\t\t\t<\/a>\n\t\t<\/article>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-6b949380 e-flex e-con-boxed e-con e-parent\" data-id=\"6b949380\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-72ef2e0c elementor-widget elementor-widget-text-editor\" data-id=\"72ef2e0c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h2 class=\"PDq2pG_selectionAnchorContainer\" data-section-id=\"mmlogr\" data-start=\"2436\" data-end=\"2494\">Why Medical LSR Molding Companies Focus on Vent Design<\/h2><p data-start=\"2496\" data-end=\"2646\">Customer need: safe medical silicone parts with no contamination risk<br data-start=\"2565\" data-end=\"2568\" \/>Manufacturing challenge: trapped air causes burn marks or incomplete filling<\/p><p data-start=\"2648\" data-end=\"2736\">In medical parts, air traps are not acceptable. Even a small bubble can affect function.<\/p><p data-start=\"2738\" data-end=\"2912\">That is why <a href=\"https:\/\/xflsrmolding.com\/technology\/\"><strong data-start=\"2750\" data-end=\"2783\">medical lsr molding companies<\/strong><\/a> treat vent design as a core step. Vent depth must be controlled. Too shallow, and air stays inside. Too deep, and flash appears.<\/p><p data-start=\"2914\" data-end=\"3003\">We also use vacuum assistance in sensitive parts. It removes air before injection starts.<\/p><p data-start=\"3005\" data-end=\"3109\">Medical molds must balance two things: no trapped air and no flash. There is very little room for error.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-1edad860 e-flex e-con-boxed e-con e-parent\" data-id=\"1edad860\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-45a3c5ae elementor-widget elementor-widget-text-editor\" data-id=\"45a3c5ae\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h2 class=\"PDq2pG_selectionAnchorContainer\" data-section-id=\"1lbagyc\" data-start=\"3116\" data-end=\"3173\">How Custom LSR Molding Companies Solve Size Variation<\/h2><p data-start=\"3175\" data-end=\"3299\">Customer need: consistent size across batches<br data-start=\"3220\" data-end=\"3223\" \/>Manufacturing challenge: silicone shrinkage changes with geometry and flow<\/p><p data-start=\"3301\" data-end=\"3429\">Many buyers think shrinkage is a fixed number. In reality, it changes with wall thickness, flow direction, and mold temperature.<\/p><p data-start=\"3431\" data-end=\"3529\"><a href=\"https:\/\/xflsrmolding.com\/technology\/\"><strong data-start=\"3431\" data-end=\"3463\">Custom lsr molding companies<\/strong><\/a> solve this by adjusting cavity design, not only process settings.<\/p><p data-start=\"3531\" data-end=\"3548\">We usually check:<\/p><ul data-start=\"3549\" data-end=\"3666\"><li data-section-id=\"1b1xa49\" data-start=\"3549\" data-end=\"3575\">Flow direction balance<\/li><li data-section-id=\"1clqde0\" data-start=\"3576\" data-end=\"3605\">Wall thickness uniformity<\/li><li data-section-id=\"slstku\" data-start=\"3606\" data-end=\"3634\">Temperature distribution<\/li><li data-section-id=\"k9vo9\" data-start=\"3635\" data-end=\"3666\">Moldflow simulation results<\/li><\/ul><p data-start=\"3668\" data-end=\"3859\">For example, a soft silicone plug showed size difference between center and edge. The issue came from uneven flow. After adjusting cavity compensation, the size stabilized across all batches.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-5a2d2750 e-flex e-con-boxed e-con e-parent\" data-id=\"5a2d2750\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-49b82cab elementor-widget elementor-widget-text-editor\" data-id=\"49b82cab\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h2 class=\"PDq2pG_selectionAnchorContainer\" data-section-id=\"10opyjh\" data-start=\"3866\" data-end=\"3941\">What LSR Injection Molding Companies for Medical Devices Do Differently<\/h2><p data-start=\"3943\" data-end=\"4070\">Customer need: smooth demolding without damage<br data-start=\"3989\" data-end=\"3992\" \/>Manufacturing challenge: silicone sticks easily to deep or detailed cavities<\/p><p data-start=\"4072\" data-end=\"4157\">Medical parts often need fine surfaces and tight shapes. This makes demolding harder.<\/p><p data-start=\"4159\" data-end=\"4229\"><a href=\"https:\/\/xflsrmolding.com\/technology\/\"><strong data-start=\"4159\" data-end=\"4214\">LSR injection molding companies for medical devices<\/strong><\/a> usually apply:<\/p><ul data-start=\"4230\" data-end=\"4342\"><li data-section-id=\"1cnrb1a\" data-start=\"4230\" data-end=\"4258\">Polished cavity surfaces<\/li><li data-section-id=\"12quyet\" data-start=\"4259\" data-end=\"4286\">Controlled draft angles<\/li><li data-section-id=\"1r7zsua\" data-start=\"4287\" data-end=\"4316\">PTFE coating in key areas<\/li><li data-section-id=\"3opvfq\" data-start=\"4317\" data-end=\"4342\">Stable curing control<\/li><\/ul><p data-start=\"4344\" data-end=\"4566\">One example is a small medical valve. The part tore during ejection in early trials. We adjusted draft angle slightly and improved surface finish. After that, the part released cleanly and stayed stable in mass production.<\/p><p data-start=\"4568\" data-end=\"4643\">In medical production, small mold changes often decide long-term stability.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-4bd8feb2 e-flex e-con-boxed e-con e-parent\" data-id=\"4bd8feb2\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-64cf2061 e-con-full e-flex e-con e-child\" data-id=\"64cf2061\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-2a40c855 elementor-widget elementor-widget-text-editor\" data-id=\"2a40c855\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h2 class=\"PDq2pG_selectionAnchorContainer\" data-section-id=\"datvaf\" data-start=\"4650\" data-end=\"4704\">Why Many Buyers Choose China LSR Molding Companies<\/h2><p data-start=\"4706\" data-end=\"4829\">Customer need: stable supply and engineering support<br data-start=\"4758\" data-end=\"4761\" \/>Manufacturing challenge: fast design changes and repeated sampling<\/p><p data-start=\"4831\" data-end=\"4946\">Many <a href=\"https:\/\/xflsrmolding.com\/technology\/\"><strong data-start=\"4836\" data-end=\"4867\">china lsr molding companies<\/strong><\/a> combine tooling and molding in one place. This matters more than people think.<\/p><p data-start=\"4948\" data-end=\"5096\">When a design needs change, we can adjust the mold quickly. We do not wait for outside tool shops. We can test, modify, and retest in a short cycle.<\/p><p data-start=\"5098\" data-end=\"5129\">We also do early design review:<\/p><ul data-start=\"5130\" data-end=\"5225\"><li data-section-id=\"72z5hc\" data-start=\"5130\" data-end=\"5153\">Gate position check<\/li><li data-section-id=\"1dj0mpp\" data-start=\"5154\" data-end=\"5175\">Vent layout check<\/li><li data-section-id=\"kgd4d7\" data-start=\"5176\" data-end=\"5200\">Shrinkage prediction<\/li><li data-section-id=\"1fg8grq\" data-start=\"5201\" data-end=\"5225\">Demolding risk check<\/li><\/ul><p data-start=\"5227\" data-end=\"5336\">In real production, problems solved before mass production cost much less than problems fixed after shipment.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-54de0538 e-flex e-con-boxed e-con e-parent\" data-id=\"54de0538\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-5582cfc8 e-con-full e-flex e-con e-child\" data-id=\"5582cfc8\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-e9233e8 elementor-widget elementor-widget-text-editor\" data-id=\"e9233e8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h2 class=\"PDq2pG_selectionAnchorContainer\" data-section-id=\"t2fhcy\" data-start=\"5343\" data-end=\"5391\">Common LSR Molding Defects and Mold Solutions<\/h2><div class=\"TyagGW_tableContainer\"><div class=\"group TyagGW_tableWrapper flex flex-col-reverse w-fit\" tabindex=\"-1\"><table class=\"w-fit min-w-(--thread-content-width)\" data-start=\"5393\" data-end=\"6122\"><thead data-start=\"5393\" data-end=\"5432\"><tr data-start=\"5393\" data-end=\"5432\"><th class=\"last:pe-10\" data-start=\"5393\" data-end=\"5402\" data-col-size=\"sm\">Defect<\/th><th class=\"last:pe-10\" data-start=\"5402\" data-end=\"5415\" data-col-size=\"sm\">Mold Cause<\/th><th class=\"last:pe-10\" data-start=\"5415\" data-end=\"5432\" data-col-size=\"md\">Mold Solution<\/th><\/tr><\/thead><tbody data-start=\"5473\" data-end=\"6122\"><tr data-start=\"5473\" data-end=\"5550\"><td data-start=\"5473\" data-end=\"5481\" data-col-size=\"sm\">Flash<\/td><td data-start=\"5481\" data-end=\"5510\" data-col-size=\"sm\">Poor parting line accuracy<\/td><td data-col-size=\"md\" data-start=\"5510\" data-end=\"5550\">Precision fitting and vacuum sealing<\/td><\/tr><tr data-start=\"5551\" data-end=\"5614\"><td data-start=\"5551\" data-end=\"5563\" data-col-size=\"sm\">Air Traps<\/td><td data-col-size=\"sm\" data-start=\"5563\" data-end=\"5582\">Poor vent design<\/td><td data-col-size=\"md\" data-start=\"5582\" data-end=\"5614\">Proper vent depth and vacuum<\/td><\/tr><tr data-start=\"5615\" data-end=\"5696\"><td data-start=\"5615\" data-end=\"5628\" data-col-size=\"sm\">Short Shot<\/td><td data-start=\"5628\" data-end=\"5654\" data-col-size=\"sm\">Uneven mold temperature<\/td><td data-col-size=\"md\" data-start=\"5654\" data-end=\"5696\">Balanced heating and gate optimization<\/td><\/tr><tr data-start=\"5697\" data-end=\"5785\"><td data-start=\"5697\" data-end=\"5710\" data-col-size=\"sm\">Burn Marks<\/td><td data-col-size=\"sm\" data-start=\"5710\" data-end=\"5740\">Overheating and trapped air<\/td><td data-col-size=\"md\" data-start=\"5740\" data-end=\"5785\">Better venting and lower mold temperature<\/td><\/tr><tr data-start=\"5786\" data-end=\"5877\"><td data-start=\"5786\" data-end=\"5810\" data-col-size=\"sm\">Dimensional Variation<\/td><td data-col-size=\"sm\" data-start=\"5810\" data-end=\"5845\">Incorrect shrinkage compensation<\/td><td data-col-size=\"md\" data-start=\"5845\" data-end=\"5877\">Direction-based compensation<\/td><\/tr><tr data-start=\"5878\" data-end=\"5965\"><td data-start=\"5878\" data-end=\"5899\" data-col-size=\"sm\">Demolding Problems<\/td><td data-col-size=\"sm\" data-start=\"5899\" data-end=\"5926\">Low curing or poor draft<\/td><td data-col-size=\"md\" data-start=\"5926\" data-end=\"5965\">PTFE coating and proper draft angle<\/td><\/tr><tr data-start=\"5966\" data-end=\"6042\"><td data-start=\"5966\" data-end=\"5988\" data-col-size=\"sm\">Parting Line Cracks<\/td><td data-col-size=\"sm\" data-start=\"5988\" data-end=\"6017\">Excessive mold temperature<\/td><td data-col-size=\"md\" data-start=\"6017\" data-end=\"6042\">Keep mold below 180\u00b0C<\/td><\/tr><tr data-start=\"6043\" data-end=\"6122\"><td data-start=\"6043\" data-end=\"6059\" data-col-size=\"sm\">Runner Curing<\/td><td data-start=\"6059\" data-end=\"6084\" data-col-size=\"sm\">Poor thermal isolation<\/td><td data-col-size=\"md\" data-start=\"6084\" data-end=\"6122\">Cold runner cooling and insulation<\/td><\/tr><\/tbody><\/table><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-5ae4f5e e-flex e-con-boxed e-con e-parent\" data-id=\"5ae4f5e\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-a1784e0 elementor-widget elementor-widget-text-editor\" data-id=\"a1784e0\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h2 class=\"PDq2pG_selectionAnchorContainer\" data-section-id=\"1hryhf7\" data-start=\"6129\" data-end=\"6135\">FAQ<\/h2><h3 data-section-id=\"x0rhkk\" data-start=\"6137\" data-end=\"6183\">How do LSR molding companies reduce flash?<\/h3><p data-start=\"6184\" data-end=\"6291\">They improve parting line accuracy, control insert fit, and use vacuum support to prevent silicone leakage.<\/p><h3 data-section-id=\"1jo5xvl\" data-start=\"6293\" data-end=\"6351\">Why do medical silicone parts need better mold design?<\/h3><p data-start=\"6352\" data-end=\"6457\">Because medical parts need stable quality and zero air traps, which depend on venting and surface design.<\/p><h3 data-section-id=\"1bm90c6\" data-start=\"6459\" data-end=\"6510\">What causes shrinkage variation in LSR molding?<\/h3><p data-start=\"6511\" data-end=\"6590\">It comes from flow direction, wall thickness, and mold temperature differences.<\/p><h3 data-section-id=\"pi0bpj\" data-start=\"6592\" data-end=\"6658\">What should buyers ask before choosing an LSR molding company?<\/h3><p data-start=\"6659\" data-end=\"6758\">Ask about mold design ability, vent design method, sampling process, and defect control experience.<\/p><h3 data-section-id=\"1yymd94\" data-start=\"6760\" data-end=\"6821\">Why is mold design more important than machine selection?<\/h3><p data-start=\"6822\" data-end=\"6912\">Machines repeat the process. The mold defines how the material flows, fills, and releases.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-4fd65a4e e-flex e-con-boxed e-con e-parent\" data-id=\"4fd65a4e\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-30ff0aac elementor-widget elementor-widget-text-editor\" data-id=\"30ff0aac\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h2 data-start=\"8363\" data-end=\"8416\"><a href=\"https:\/\/xflsrmolding.com\/markets\/\">Contact US<\/a> to Discuss Your Project Today<\/h2><p class=\"PDq2pG_selectionAnchorContainer\" data-start=\"6934\" data-end=\"7094\">In real production, good results rarely come from machines alone. They come from how the mold is designed and how risks are controlled before production starts.<\/p><p data-start=\"7096\" data-end=\"7313\">Experienced <a href=\"https:\/\/xflsrmolding.com\/technology\/\"><strong data-start=\"7108\" data-end=\"7133\">lsr molding companies<\/strong><\/a> usually spend most time in design review. They check flow, venting, shrinkage, and demolding before steel is cut. This reduces defects later and keeps production stable over time.<\/p><p data-start=\"7315\" data-end=\"7427\" data-is-last-node=\"\" data-is-only-node=\"\">From a manufacturing view, stable parts are not made by fixing problems. They are made by preventing them early.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Blog Home Blog LSR Manufacturing Process Explained Simply LSR Molding Companies: How Better Mold Design Prevents Silicone Part Defects Table of Contents Introduction When you search for lsr molding companies, you usually want a supplier who can make stable parts, not just quote a low price. But in real production, the problem is rarely the [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":1162,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_uag_custom_page_level_css":"","footnotes":""},"categories":[1],"tags":[],"class_list":["post-1357","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v24.0 (Yoast SEO v28.1) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>LSR Molding Companies for Stable Silicone Parts<\/title>\n<meta name=\"description\" content=\"Learn how lsr molding companies solve flash, air traps, and size issues through mold design, not machine adjustment.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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Home Blog LSR Manufacturing Process Explained Simply LSR Molding Companies: How Better Mold Design Prevents Silicone Part Defects Table of Contents Introduction When you search for lsr molding companies, you usually want a supplier who can make stable parts, not just quote a low price. 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