{"id":2554,"date":"2026-06-15T17:49:14","date_gmt":"2026-06-15T09:49:14","guid":{"rendered":"https:\/\/www.jcinjectionmolding.com\/?p=2554"},"modified":"2026-06-30T11:35:40","modified_gmt":"2026-06-30T03:35:40","slug":"tpv-teknor-apex-sarlink-3140","status":"publish","type":"material_model","link":"https:\/\/www.jcinjectionmolding.com\/fr\/materials\/thermoplastic-vulcanizate-tpv\/tpv-teknor-apex-sarlink-3140\/","title":{"rendered":"TPV-Teknor Apex Sarlink 3140"},"content":{"rendered":"
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Sarlink 3140 Low-Hardness & Mechanical Recovery Profile<\/h2>\n

Sarlink\u00ae 3140 is a low-hardness, low-density multi-purpose polypropylene-based thermoplastic vulcanizate (TPV) engineered by Teknor Apex, designed to deliver exceptional compression set and elastomeric toughness under ISO standards:<\/p>\n\n\n\n\n\n\n\n
Param\u00e8tre physique et de r\u00e9sistance<\/th>\nSarlink 3140 Tested Spec<\/th>\nAvantage d'\u00e9tanch\u00e9it\u00e9 dynamique<\/th>\n<\/tr>\n<\/thead>\n
Low Hardness Spec<\/td>\n46 Shore A (Injection Molded \/ 5s)<\/td>\nOffers high mechanical compliance and low-load sealing compressibility, perfect for squeezable grips and high-sealing lip gaskets.<\/td>\n<\/tr>\n
Allongement en traction<\/td>\nElongation at Break 600% (Cross Direction)<\/td>\nHigh-molecular-weight polymer matrices provide extreme elastic stretchability without dynamic tear or shear failure.<\/td>\n<\/tr>\n
Compression Recovery<\/td>\nCompression Set 18% (at 23\u00b0C, 22h)<\/td>\nMaintains excellent, repeatable sealing recovery under long-term compression, preventing leakage under low torque loads.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/section>\n

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Process & Sealing Configurations for Highly Flexible Sarlink 3140<\/h2>\n

With its ultra-soft matrix and high melt stability, Sarlink 3140 processes consistently inside precise molds:<\/p>\n\n\n\n\n\n\n\n
Classe de processus de moulage<\/th>\nCompatibilit\u00e9 de moulage et d\u00e9tails de configuration du processus<\/th>\n<\/tr>\n<\/thead>\n
Precision Dynamic Seals & Gaskets<\/td>\nExcellent. Configured with hot-runner manifolds to mold high-compliance water gaskets, soft dynamic seals, and expanding boots.<\/td>\n<\/tr>\n
Low-Hardness Squeezable Grips<\/td>\nExcellent. Ideal for overmolding onto rigid PP tool cores, dynamic hand grips, and squeezable cosmetic container caps.<\/td>\n<\/tr>\n
Multi-Cavity Automated Fast Runs<\/td>\nGood. Highly optimized for high-pressure injection molding with highly uniform weight replication on large automated runs.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/section>\n

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TPE-KRAIBURG Thermolast M TM6MED Tooling & Overmolding Guide<\/h2>\n

Molding an amorphous medical-grade elastomer like TM6MED requires strict control of parting lines to prevent flash, alongside cleanroom contamination control:<\/p>\n

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Optimizing Soft-Touch Tool Release (Draft Angles)<\/p>\n

Because Sarlink 3140 is exceptionally soft and flexible, parts can easily stick to cores, causing severe ejector pin drag marks. Jucheng\u2019s tooling division machines generous draft angles (minimum 1.5\u00b0 to 2.0\u00b0) and uses wide ejector pins or stripper bars to distribute demolding forces evenly.<\/p>\n<\/div>\n

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High-Precision\u5408\u6a21\u7ebf clearances (Flash Prevention)<\/p>\n

With its ultra-soft elastomer base, molten TPV can seep easily into minor mold gaps, causing parting line flash. Jucheng\u2019s tooling division uses 5-axis CNC machines to achieve micro-tolerances, keeping mold parting clearances strictly within 0.005mm on premium S136 stainless steel mold cavity blocks.<\/p>\n<\/div>\n

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Cold Mold Temperature Control (Quick Freeze)<\/p>\n

We maintain mold temperatures at 20\u00b0C\u201340\u00b0C (68\u00b0F to 104\u00b0F) using pressurized water chillers. Keeping tools cold is critical to freeze the soft elastomeric phase quickly, allowing for automatic, warp-free ejection. Melt temperatures are controlled at 180\u00b0C\u2013220\u00b0C.<\/p>\n<\/div>\n

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Compensation de retrait \u00e9lastique \u00e9lev\u00e9<\/p>\n

Like standard TPV, Sarlink 3140 exhibits high shrinkage (typically 1.5% to 2.5% depending on hardness and grade). Our tooling division scales mold cavities precisely to compensate for this shrinkage, ensuring exact dimensional results verified by Zeiss CMM.<\/p>\n<\/div>\n<\/div>\n<\/section>\n

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Key Application Fields for TPV-Teknor Apex Sarlink 3140<\/h2>\n
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  • Precision Sealing & Gaskets:<\/strong> Dynamic plumbing mixing-valve seals, high-density water meter connection rings, domestic water gaskets, and high-pressure pipe couplings.<\/li>\n
  • Automotive Powertrains & Chassis (IATF 16949):<\/strong> High-temperature dust bellows, steering rack protective sleeves, vibration-damping grommets, and chassis seals.<\/li>\n
  • Squeezable Consumer Grips:<\/strong> Non-slip, soft-touch hand grips for screwdrivers, electric drill handles, toothbrush grips, kitchenware handles, and adjustable lever covers.<\/li>\n<\/ul>\n<\/section>\n<\/div>","protected":false},"excerpt":{"rendered":"

    Sarlink 3140 Low-Hardness & Mechanical Recovery Profile Sarlink\u00ae 3140 is a low-hardness, low-density multi-purpose polypropylene-based thermoplastic vulcanizate (TPV) engineered by Teknor Apex, designed to deliver exceptional compression set and elastomeric toughness under ISO standards: Physical & Strength Parameter Sarlink 3140 Tested Spec Dynamic Sealing Benefit Low Hardness Spec 46 Shore A (Injection Molded \/ 5s) […]<\/p>\n","protected":false},"featured_media":2517,"template":"","meta":[],"class_list":["post-2554","material_model","type-material_model","status-publish","has-post-thumbnail","hentry"],"_links":{"self":[{"href":"https:\/\/www.jcinjectionmolding.com\/fr\/wp-json\/wp\/v2\/material_model\/2554","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.jcinjectionmolding.com\/fr\/wp-json\/wp\/v2\/material_model"}],"about":[{"href":"https:\/\/www.jcinjectionmolding.com\/fr\/wp-json\/wp\/v2\/types\/material_model"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.jcinjectionmolding.com\/fr\/wp-json\/wp\/v2\/media\/2517"}],"wp:attachment":[{"href":"https:\/\/www.jcinjectionmolding.com\/fr\/wp-json\/wp\/v2\/media?parent=2554"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}