{"id":157,"date":"2026-11-03T02:52:10","date_gmt":"2026-11-02T18:52:10","guid":{"rendered":"https:\/\/qing-link.com\/?p=157"},"modified":"2026-11-03T03:04:59","modified_gmt":"2026-11-02T19:04:59","slug":"silicone-tubing-wall-thickness-tolerance","status":"publish","type":"post","link":"https:\/\/qing-link.com\/?p=157","title":{"rendered":"How to Specify Silicone Tubing Wall Thickness and Tolerance"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"157\" class=\"elementor elementor-157 elementor-bc-flex-widget\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-0c20001 e-con-full e-flex e-con e-parent\" data-id=\"0c20001\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-0c20000 elementor-widget elementor-widget-template\" data-id=\"0c20000\" data-element_type=\"widget\" data-e-type=\"widget\" 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class=\"elementor-element elementor-element-0500000 e-con-full e-flex e-con e-parent\" data-id=\"0500000\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t<div class=\"elementor-element elementor-element-0500001 e-con-full e-flex e-con e-parent\" data-id=\"0500001\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-0500002 yt-top-l elementor-widget elementor-widget-text-editor\" data-id=\"0500002\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>sales16@yutiansilicone.com&#12288;&#183;&#12288;+86 136 6281 5387<span class=\"yt-loc\">&#12288;&#183;&#12288;Dongguan, Guangdong, China<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0500003 yt-top-r elementor-widget elementor-widget-text-editor\" data-id=\"0500003\" 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elementor-widget-text-editor\" data-id=\"050000a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<a class=\"yt-search\" href=\"?page_id=140\" aria-label=\"Search\"><svg width=\"17\" height=\"17\" viewBox=\"0 0 18 18\" fill=\"none\"><circle cx=\"8\" cy=\"8\" r=\"6.1\" stroke=\"currentColor\" stroke-width=\"1.7\"\/><path d=\"M12.6 12.6 L16.4 16.4\" stroke=\"currentColor\" stroke-width=\"1.7\" stroke-linecap=\"round\"\/><\/svg><\/a>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0500009 elementor-widget elementor-widget-text-editor\" data-id=\"0500009\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<details class=\"yt-mob\"><summary>&#9776;<\/summary><div class=\"yt-mob-box\"><a href=\"\/\">Home<\/a><a href=\"?page_id=140\">Products<\/a><a class=\"sub\" href=\"?page_id=140#tubing\">Food Grade Tubing<\/a><a class=\"sub\" 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INQUIRY&#12288;&#8594;<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-050000e elementor-widget elementor-widget-html\" data-id=\"050000e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t\t<script>\n(function(){\n  var q=location.search, id=(new URLSearchParams(q)).get('page_id');\n  var map={'133':'Home','140':'Products','167':'Applications','161':'Resources','151':'About Us','144':'Contact Us'};\n  var cur = id ? (map[id]||'') : 'Home';\n  document.querySelectorAll('.yt-nav a').forEach(function(a){\n    a.classList.remove('on');\n    if(cur && a.textContent.trim().indexOf(cur)===0) a.classList.add('on');\n  });\n})();\n<\/script>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/header>\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<\/div>\n\t\t<div class=\"elementor-element elementor-element-0c20002 e-con-full e-flex e-con e-parent\" data-id=\"0c20002\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t<div class=\"elementor-element elementor-element-0c20003 e-con-full e-flex e-con e-parent\" data-id=\"0c20003\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-0c20008 e-con-full e-flex e-con e-parent\" data-id=\"0c20008\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-0c20004 elementor-widget elementor-widget-text-editor\" data-id=\"0c20004\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<a href=\"?page_id=161\" style=\"color:#5E9A0F;text-decoration:none;font-weight:600\">Blog<\/a><span style=\"color:#C6D0DC\">&#12288;\/&#12288;<\/span><span style=\"color:#7A8A9C\">Design &#038; Engineering<\/span>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0c20007 elementor-widget elementor-widget-text-editor\" data-id=\"0c20007\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<div style=\"height:14px\"><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0c20005 elementor-widget elementor-widget-heading\" data-id=\"0c20005\" 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\">How to Specify Silicone Tubing Wall Thickness and Tolerance<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0c20006 elementor-widget elementor-widget-text-editor\" data-id=\"0c20006\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<span style=\"display:inline-block;width:5px;height:5px;border-radius:50%;background:#C3D6A8;margin:0 3px 2px 0\"><\/span>&#12288;21 Oct 2026&#12288;&#183;&#12288;8 min read&#12288;&#183;&#12288;Yutian Engineering Team\t\t\t\t\t\t\t\t<\/div>\n\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-0c20009 e-con-full e-flex e-con e-parent\" data-id=\"0c20009\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t<div class=\"elementor-element elementor-element-0c2000a e-con-full e-flex e-con e-parent\" data-id=\"0c2000a\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-0c20019 e-con-full e-flex e-con e-parent\" data-id=\"0c20019\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-0c2000b elementor-widget elementor-widget-text-editor\" data-id=\"0c2000b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p style=\"margin:0\">ID, wall and concentricity are three separate promises. Confusing them is the most common reason a tube that &ldquo;meets drawing&rdquo; still leaks on the filling line.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0c2000c elementor-widget elementor-widget-html\" data-id=\"0c2000c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t\t<div style=\"height:1px;background:#EEF2E8;margin:26px 0 4px\"><\/div>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0c2000d elementor-widget elementor-widget-heading\" data-id=\"0c2000d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Thicker is not simply stronger<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0c2000e elementor-widget elementor-widget-text-editor\" data-id=\"0c2000e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p style=\"margin:0\">A silicone tube is a spring and a hose at the same time. Wall thickness sets how much it resists collapsing under vacuum, how much force a barb needs, and how quickly a peristaltic pump fatigues it. Past a point, more wall just makes the part stiff and expensive.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0c2000f elementor-widget elementor-widget-heading\" data-id=\"0c2000f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">The three numbers on a tube drawing<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0c20010 elementor-widget elementor-widget-text-editor\" data-id=\"0c20010\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p style=\"margin:0\">Most disputes come from treating these as one tolerance. They are measured differently and they fail differently.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0c20011 elementor-widget elementor-widget-html\" data-id=\"0c20011\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t\t<div class=\"yt-tblwrap\"><table class=\"yt-tbl\"><thead><tr><th>Dimension<\/th><th>Commercial<\/th><th>Precision<\/th><th>What drives it<\/th><\/tr><\/thead><tbody><tr><td>Inside diameter<\/td><td>&plusmn;0.15&nbsp;mm<\/td><td>&plusmn;0.08&nbsp;mm<\/td><td>Mandrel size and draw speed<\/td><\/tr><tr><td>Wall thickness<\/td><td>&plusmn;0.15&nbsp;mm<\/td><td>&plusmn;0.10&nbsp;mm<\/td><td>Die gap and extrusion pressure<\/td><\/tr><tr><td>Concentricity<\/td><td>0.20&nbsp;mm TIR<\/td><td>0.10&nbsp;mm TIR<\/td><td>Mandrel centring in the die<\/td><\/tr><tr><td>Length<\/td><td>&plusmn;1.0&nbsp;mm<\/td><td>&plusmn;0.5&nbsp;mm<\/td><td>Cut method and cooling<\/td><\/tr><\/tbody><\/table><\/div>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0c20012 elementor-widget elementor-widget-heading\" data-id=\"0c20012\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Tolerance stack-up, worked through<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0c20013 elementor-widget elementor-widget-text-editor\" data-id=\"0c20013\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p style=\"margin:0\">Take a 6.0&nbsp;mm ID &times; 1.5&nbsp;mm wall tube mated to a 6.0&nbsp;mm barb. At commercial tolerance the ID can sit at 6.15&nbsp;mm &mdash; that is already 2.5%% loose before the barb tolerance is considered. Add a soft 50&nbsp;Shore&nbsp;A compound and the joint will weep under 1&nbsp;bar.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0c20014 elementor-widget elementor-widget-text-editor\" data-id=\"0c20014\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p style=\"margin:0\">The fix is rarely a tighter tube. It is usually a slightly undersized ID callout (&minus;0.05&nbsp;mm) so the interference is always positive.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0c20015 elementor-widget elementor-widget-heading\" data-id=\"0c20015\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Writing the callout<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0c20016 elementor-widget elementor-widget-html\" data-id=\"0c20016\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t\t<ul class=\"yt-ul\"><li><b>Give ID and wall, never OD.<\/b> OD is a result and stacks both tolerances.<\/li><li><b>Put concentricity on the drawing.<\/b> An off-centre tube passes ID and wall checks and still fails a pinch valve.<\/li><li><b>State the hardness.<\/b> Tolerance and hardness interact; 0.15&nbsp;mm means different things at 40 and 70 Shore&nbsp;A.<\/li><li><b>Say how you will measure it.<\/b> Pin gauge, laser or optical comparator give different answers on a soft tube.<\/li><\/ul>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0c20017 elementor-widget elementor-widget-html\" data-id=\"0c20017\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t\t<div class=\"yt-tip\"><b>WHEN TO PAY FOR PRECISION<\/b>Tighter class earns its cost on metering, peristaltic and medical lines. On a drain hose it is money spent for nothing.<\/div>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0c20018 elementor-widget elementor-widget-html\" data-id=\"0c20018\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t\t\n<style>\n.yt-ul{margin:0;padding:0;list-style:none}\n.yt-ul li{position:relative;padding-left:20px;margin-bottom:9px;font-size:14.5px;\n  line-height:1.85;color:#48566A}\n.yt-ul li:last-child{margin-bottom:0}\n.yt-ul li::before{content:\"\";position:absolute;left:2px;top:12px;width:6px;height:6px;\n  border-radius:50%;background:#81C21A}\n.yt-ul b{color:#0F172A;font-weight:600}\n.yt-tip{background:#F4FAEA;border-left:3px solid #81C21A;border-radius:0 8px 8px 0;\n  padding:15px 20px;font-size:14px;line-height:1.8;color:#3F4A5A}\n.yt-tip b{display:block;color:#3F7A05;font-size:11px;font-weight:800;\n  letter-spacing:.12em;margin-bottom:6px}\n.yt-tbl{width:100%;border-collapse:collapse;font-size:13px;\n  border:1px solid #E9EFE1;border-radius:8px;overflow:hidden}\n.yt-tbl th{background:#F5F8EF;color:#0F172A;font-weight:700;text-align:left;\n  padding:11px 14px;border-bottom:1px solid #E3EBD8;font-size:10.5px;\n  letter-spacing:.06em;text-transform:uppercase;white-space:nowrap}\n.yt-tbl td{padding:11px 14px;border-bottom:1px solid #F0F4EA;color:#48566A;\n  line-height:1.65;vertical-align:top}\n.yt-tbl tr:last-child td{border-bottom:none}\n.yt-tbl td:first-child{font-weight:600;color:#0F172A;white-space:nowrap}\n@media(max-width:767px){\n  h1.elementor-heading-title{font-size:27px!important;line-height:1.28!important}\n  .yt-ul li{font-size:14px;line-height:1.8}\n  .yt-tbl{font-size:12px}\n  .yt-tbl th,.yt-tbl td{padding:9px 11px}\n}\n.yt-tblwrap{overflow-x:auto;-webkit-overflow-scrolling:touch;width:100%}\n.yt-ul,.yt-tip{width:100%}\n<\/style>\n\t\t\t\t<\/div>\n\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-0c2001a e-con-full e-flex e-con e-parent\" data-id=\"0c2001a\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t<div class=\"elementor-element elementor-element-0c2001b e-con-full e-flex e-con e-parent\" data-id=\"0c2001b\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-0c20037 e-con-full e-flex e-con e-parent\" data-id=\"0c20037\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-0c20020 e-con-full e-flex e-con e-parent\" data-id=\"0c20020\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-0c2001e e-con-full e-flex e-con e-parent\" data-id=\"0c2001e\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-0c2001c elementor-widget elementor-widget-heading\" data-id=\"0c2001c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<div class=\"elementor-heading-title elementor-size-default\">KEEP READING<\/div>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0c2001d elementor-widget elementor-widget-heading\" data-id=\"0c2001d\" 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 technical notes<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0c2001f elementor-align-left elementor-widget elementor-widget-button\" data-id=\"0c2001f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"?page_id=161\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">VIEW ALL ARTICLES&#12288;&#8594;<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-0c20036 e-con-full e-flex e-con e-parent\" data-id=\"0c20036\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-0c20027 e-con-full e-flex e-con e-parent\" data-id=\"0c20027\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-0c20021 yt-thumb elementor-widget elementor-widget-image\" data-id=\"0c20021\" 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<img fetchpriority=\"high\" decoding=\"async\" width=\"900\" height=\"549\" src=\"https:\/\/qing-link.com\/wp-content\/uploads\/2026\/11\/manufacturing-c.jpg\" class=\"attachment-full size-full wp-image-136\" alt=\"\" srcset=\"https:\/\/qing-link.com\/wp-content\/uploads\/2026\/11\/manufacturing-c.jpg 900w, https:\/\/qing-link.com\/wp-content\/uploads\/2026\/11\/manufacturing-c-300x183.jpg 300w, https:\/\/qing-link.com\/wp-content\/uploads\/2026\/11\/manufacturing-c-768x468.jpg 768w\" sizes=\"(max-width: 900px) 100vw, 900px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-0c20026 e-con-full e-flex e-con e-parent\" data-id=\"0c20026\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-0c20022 yt-pcat elementor-widget elementor-widget-text-editor\" data-id=\"0c20022\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<span style=\"color:#5E9A0F;font-weight:800;letter-spacing:.11em\">MATERIALS &#038; COMPOUNDS<\/span>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0c20023 yt-pc elementor-widget elementor-widget-heading\" data-id=\"0c20023\" 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\"><a href=\"?p=155\" style=\"color:#0F172A;text-decoration:none\">Platinum Cured vs Peroxide Cured Silicone: Which Grade Does Your Part Need?<\/a><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0c20024 elementor-widget elementor-widget-text-editor\" data-id=\"0c20024\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p style=\"margin:0\">Both are silicone rubber, and on a drawing they look identical. The cure system decides what leaches out of the &hellip;<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0c20025 elementor-widget elementor-widget-text-editor\" data-id=\"0c20025\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p style=\"margin:0\">28 Oct 2026&#12288;&#183;&#12288;7 min read<\/p>\t\t\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-0c2002e e-con-full e-flex e-con e-parent\" data-id=\"0c2002e\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-0c20028 yt-thumb elementor-widget elementor-widget-image\" data-id=\"0c20028\" 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<img decoding=\"async\" width=\"700\" height=\"612\" src=\"https:\/\/qing-link.com\/wp-content\/uploads\/2026\/11\/product-food-c.jpg\" class=\"attachment-full size-full wp-image-138\" alt=\"\" srcset=\"https:\/\/qing-link.com\/wp-content\/uploads\/2026\/11\/product-food-c.jpg 700w, https:\/\/qing-link.com\/wp-content\/uploads\/2026\/11\/product-food-c-300x262.jpg 300w\" sizes=\"(max-width: 700px) 100vw, 700px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-0c2002d e-con-full e-flex e-con e-parent\" data-id=\"0c2002d\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-0c20029 yt-pcat elementor-widget elementor-widget-text-editor\" data-id=\"0c20029\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<span style=\"color:#5E9A0F;font-weight:800;letter-spacing:.11em\">COMPLIANCE &#038; CERTIFICATION<\/span>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0c2002a yt-pc elementor-widget elementor-widget-heading\" data-id=\"0c2002a\" 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\"><a href=\"?p=158\" style=\"color:#0F172A;text-decoration:none\">FDA, LFGB and USP Class VI: What Each Certificate Actually Tests<\/a><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0c2002b elementor-widget elementor-widget-text-editor\" data-id=\"0c2002b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p style=\"margin:0\">Three names that get used interchangeably in quotation emails, and three completely different tests. Here is wha&hellip;<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0c2002c elementor-widget elementor-widget-text-editor\" data-id=\"0c2002c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p style=\"margin:0\">14 Oct 2026&#12288;&#183;&#12288;9 min read<\/p>\t\t\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-0c20035 e-con-full e-flex e-con e-parent\" data-id=\"0c20035\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-0c2002f yt-thumb elementor-widget elementor-widget-image\" data-id=\"0c2002f\" 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<img decoding=\"async\" width=\"700\" height=\"606\" src=\"https:\/\/qing-link.com\/wp-content\/uploads\/2026\/11\/product-profiles-c.jpg\" class=\"attachment-full size-full wp-image-139\" alt=\"\" srcset=\"https:\/\/qing-link.com\/wp-content\/uploads\/2026\/11\/product-profiles-c.jpg 700w, https:\/\/qing-link.com\/wp-content\/uploads\/2026\/11\/product-profiles-c-300x260.jpg 300w\" sizes=\"(max-width: 700px) 100vw, 700px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-0c20034 e-con-full e-flex e-con e-parent\" data-id=\"0c20034\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-0c20030 yt-pcat elementor-widget elementor-widget-text-editor\" data-id=\"0c20030\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<span style=\"color:#5E9A0F;font-weight:800;letter-spacing:.11em\">DESIGN &#038; ENGINEERING<\/span>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0c20031 yt-pc elementor-widget elementor-widget-heading\" data-id=\"0c20031\" 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\"><a href=\"?p=159\" style=\"color:#0F172A;text-decoration:none\">Why Shore A Hardness Changes Pump Flow More Than Wall Thickness<\/a><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0c20032 elementor-widget elementor-widget-text-editor\" data-id=\"0c20032\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p style=\"margin:0\">Two tubes, same ID, same wall, 12% different flow rate. The variable was hardness \u2014 and it is usually the last t&hellip;<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0c20033 elementor-widget elementor-widget-text-editor\" data-id=\"0c20033\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p style=\"margin:0\">07 Oct 2026&#12288;&#183;&#12288;6 min read<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\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-0c20038 e-con-full e-flex e-con e-parent\" data-id=\"0c20038\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t<div class=\"elementor-element elementor-element-0c20039 e-con-full e-flex e-con e-parent\" data-id=\"0c20039\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-0c20040 e-con-full e-flex e-con e-parent\" data-id=\"0c20040\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-0c2003a elementor-widget elementor-widget-heading\" data-id=\"0c2003a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<div class=\"elementor-heading-title elementor-size-default\">TALK TO AN ENGINEER<\/div>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0c2003b elementor-widget elementor-widget-heading\" data-id=\"0c2003b\" 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\">Questions about your own part?<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0c2003c elementor-widget__width-custom elementor-widget-tablet__width-initial elementor-widget-mobile__width-initial elementor-widget elementor-widget-text-editor\" data-id=\"0c2003c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p style=\"margin:0\">Send a drawing or a sample. We will tell you which compound and hardness we would run, and what it costs at your volume.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-0c2003f e-con-full e-flex e-con e-parent\" data-id=\"0c2003f\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-0c2003d elementor-align-left elementor-widget elementor-widget-button\" data-id=\"0c2003d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"?page_id=144\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">REQUEST A QUOTE&#12288;&#8594;<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0c2003e elementor-align-left elementor-widget elementor-widget-button\" data-id=\"0c2003e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"?page_id=140\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">DOWNLOAD CATALOGUE<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\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-0c20042 e-con-full e-flex e-con e-parent\" data-id=\"0c20042\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-0c20041 elementor-widget elementor-widget-template\" data-id=\"0c20041\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"template.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-template\">\n\t\t\t\t\t<footer data-elementor-type=\"footer\" data-elementor-id=\"130\" class=\"elementor elementor-130 elementor-bc-flex-widget\" data-elementor-post-type=\"elementor_library\">\n\t\t\t<div class=\"elementor-element elementor-element-0600000 e-con-full e-flex e-con e-parent\" data-id=\"0600000\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-060001e elementor-widget elementor-widget-html\" data-id=\"060001e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t\t<style>\n.yt-soc a{width:22px;height:22px;border-radius:50%;display:inline-flex;align-items:center;\n  justify-content:center;background:rgba(15,23,42,.06);color:#5A6B80;font-size:9.5px;\n  font-weight:700;text-decoration:none;transition:.2s;margin-right:4px;font-family:Inter,sans-serif}\n.yt-soc a:hover{background:#81C21A;color:#fff}\n.yt-cert .yt-pill{display:inline-block;padding:4px 10px;border:1px solid #E1E9D9;border-radius:4px;\n  background:#fff;color:#5E9A0F;font-size:9.5px;font-weight:700;letter-spacing:.7px;\n  margin:0 6px 6px 0;line-height:1.6}\n.yt-ctbox .yt-ct{display:flex;gap:9px;align-items:flex-start;margin-bottom:9px}\n.yt-ctbox .yt-ct i{width:15px;color:#81C21A;font-style:normal;font-size:11px;\n  line-height:1.75;flex:none}\n.elementor-element-0600000 a{text-decoration:none;color:#6B7C8E;transition:color .2s}\n.elementor-element-0600000 a:hover{color:#5E9A0F}\n@media(max-width:1080px){\n  .elementor-element-0600002{flex-wrap:wrap!important;gap:30px!important}\n  .elementor-element-0600002>.e-con{width:47%!important;flex:none!important}\n  .elementor-element-0600008{width:100%!important}\n}\n@media(max-width:640px){\n  .elementor-element-0600002>.e-con{width:100%!important}\n  .elementor-element-060001b{flex-wrap:wrap!important;justify-content:center!important;gap:8px!important}\n}\n<\/style>\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-0600001 e-con-full e-flex e-con e-parent\" data-id=\"0600001\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t<div class=\"elementor-element elementor-element-0600002 e-con-full e-flex e-con e-parent\" data-id=\"0600002\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-0600008 e-con-full e-flex e-con e-parent\" data-id=\"0600008\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-0600004 e-con-full e-flex e-con e-parent\" data-id=\"0600004\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-0600003 elementor-widget elementor-widget-image\" data-id=\"0600003\" 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<img decoding=\"async\" src=\"https:\/\/qing-link.com\/wp-content\/uploads\/2026\/11\/yutian-logo-trim.jpg\" title=\"\" alt=\"\" loading=\"lazy\" \/>\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<div class=\"elementor-element elementor-element-0600005 elementor-widget elementor-widget-text-editor\" data-id=\"0600005\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Dongguan Yutian Silicone Rubber Technology Co., Ltd. is a 20+ year custom silicone manufacturer, supplying tubing, profiles, seals and molded parts to medical, food and industrial customers worldwide.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0600006 yt-cert elementor-widget elementor-widget-text-editor\" data-id=\"0600006\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<span class=\"yt-pill\">FDA<\/span><span class=\"yt-pill\">ISO 9001<\/span><span class=\"yt-pill\">LFGB<\/span><span class=\"yt-pill\">RoHS<\/span>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0600007 elementor-widget elementor-widget-text-editor\" data-id=\"0600007\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<span class=\"yt-soc\"><a href=\"#\">in<\/a><a href=\"#\">f<\/a><a href=\"#\">&#9654;<\/a><\/span>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-060000c e-con-full e-flex e-con e-parent\" data-id=\"060000c\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-0600009 elementor-widget elementor-widget-heading\" data-id=\"0600009\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<div class=\"elementor-heading-title elementor-size-default\">PRODUCTS<\/div>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-060000a elementor-widget elementor-widget-text-editor\" data-id=\"060000a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<div style=\"height:2px;width:24px;background:#81C21A;border-radius:2px;margin:10px 0 13px\"><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-060000b elementor-widget elementor-widget-text-editor\" data-id=\"060000b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<a href=\"?page_id=140#tubing\">Food Grade Silicone Tubing<\/a><br><a href=\"?page_id=140#tubing\">Medical Grade Tubing<\/a><br><a href=\"?page_id=140#tubing\">Industrial Silicone Tubing<\/a><br><a href=\"?page_id=140#profiles\">Custom Profiles &amp; Extrusions<\/a><br><a href=\"?page_id=140#sheets\">Seals &amp; Gaskets<\/a><br><a href=\"?page_id=140#sheets\">Silicone Sheets &amp; Rods<\/a>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-0600010 e-con-full e-flex e-con e-parent\" data-id=\"0600010\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-060000d elementor-widget elementor-widget-heading\" data-id=\"060000d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<div class=\"elementor-heading-title elementor-size-default\">INDUSTRIES<\/div>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-060000e elementor-widget elementor-widget-text-editor\" data-id=\"060000e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<div style=\"height:2px;width:24px;background:#81C21A;border-radius:2px;margin:10px 0 13px\"><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-060000f elementor-widget elementor-widget-text-editor\" data-id=\"060000f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<a href=\"?page_id=167#app-food\">Food &amp; Beverage<\/a><br><a href=\"?page_id=167#app-medical\">Medical &amp; Healthcare<\/a><br><a href=\"?page_id=167#app-automotive\">Automotive &amp; EV<\/a><br><a href=\"?page_id=167#app-lighting\">Lighting &amp; Electronics<\/a><br><a href=\"?page_id=167#app-industrial\">Industrial Equipment<\/a><br><a href=\"?page_id=167#app-consumer\">Consumer Products<\/a>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-0600014 e-con-full e-flex e-con e-parent\" data-id=\"0600014\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-0600011 elementor-widget elementor-widget-heading\" data-id=\"0600011\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<div class=\"elementor-heading-title elementor-size-default\">SUPPORT<\/div>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0600012 elementor-widget elementor-widget-text-editor\" data-id=\"0600012\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<div style=\"height:2px;width:24px;background:#81C21A;border-radius:2px;margin:10px 0 13px\"><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0600013 elementor-widget elementor-widget-text-editor\" data-id=\"0600013\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<a href=\"?page_id=161\">Technical Blog<\/a><br><a href=\"?page_id=167#app-compliance\">Product Certifications<\/a><br><a href=\"?page_id=167#app-compliance\">Material Safety Data<\/a><br><a href=\"?page_id=167#app-compliance\">Test Report Download<\/a><br><a href=\"?page_id=140\">Component List<\/a><br><a href=\"?page_id=167#app-faq\">FAQ &amp; Guides<\/a>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-0600019 e-con-full e-flex e-con e-parent\" data-id=\"0600019\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-0600015 elementor-widget elementor-widget-heading\" data-id=\"0600015\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<div class=\"elementor-heading-title elementor-size-default\">CONTACT<\/div>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element 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