{"id":2334,"date":"2026-05-21T16:03:12","date_gmt":"2026-05-21T08:03:12","guid":{"rendered":"https:\/\/www.jcinjectionmolding.com\/?p=2334"},"modified":"2026-06-30T17:10:32","modified_gmt":"2026-06-30T09:10:32","slug":"thermoplastic-elastomer-tpe","status":"publish","type":"material","link":"https:\/\/www.jcinjectionmolding.com\/zh_hk\/materials\/thermoplastic-elastomer-tpe\/","title":{"rendered":"Thermoplastic Elastomer (TPE)"},"content":{"rendered":"
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Comprehensive TPE Grades We Mold<\/h2>\n

We process high-performance Thermoplastic Elastomer formulations from world-leading synthesizers, specialized for excellent bonding, soft-touch cosmetics, and sealing functions:<\/p>\n\n\n\n\n\n\n\n
TPE Material Class<\/th>\nTypical Brand & Grade<\/th>\nKey Characteristics & Advantages<\/th>\n<\/tr>\n<\/thead>\n
SBC-based (TPE-S) \/ Overmolding<\/td>\n\u2022 KRAIBURG Thermolast K TC5GPZ
\n\u2022 Avient GLS Versaflex OM 1040X
\n\u2022 Kraton G2705 \/ G7820
\n\u2022 Teknor Apex Monprene RG-10150<\/td>\n		Outstanding adhesion and thermal bonding compatibility with rigid substrates (PP, ABS, PC, PC\/ABS, PA). Provides soft-touch, anti-slip textures. Specified for tool grips, toothbrushes, and consumer electronics.<\/td>\n<\/tr>\n
Medical & Healthcare<\/td>\n\u2022 KRAIBURG Thermolast K TC6LMN
\n\u2022 Avient GLS OnFlex-S
\n\u2022 Teknor Apex Sarlink ME-2255<\/td>\n		USP Class VI, ISO 10993, and FDA food-contact compliant. Highly inert, latex-free, and PVC-free formulations. Ideal for medical syringe plungers, soft-touch diagnostic buttons, and dental tool grips.<\/td>\n<\/tr>\n
High Flow \/ Thin-Wall<\/td>\n\u2022 KRAIBURG Thermolast K TC5GPN
\n\u2022 Teknor Apex Monprene GP series<\/td>\n		High melt flow index (MFI) designed for filling long, intricate flow channels and extremely thin-walled gaskets without short shots. Used for structural sealing profiles and consumer covers.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/section>\n

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Applicable Molding Processes for TPE<\/h2>\n

TPE’s elastomeric nature and excellent melt fluidity allow for versatile double-shot and encapsulation configurations:<\/p>\n\n\n\n\n\n\n\n
Molding Process<\/th>\nProcess Suitability & Application<\/th>\n<\/tr>\n<\/thead>\n
Overmolding (Multi-Shot)<\/td>\nExcellent. The primary process for TPE. Allows molding a soft-touch TPE layer directly over pre-molded rigid structures (such as PP, ABS, or PC) to form permanent anti-slip grips.<\/td>\n<\/tr>\n
2-Shot (2K) Molding<\/td>\nExcellent. Simultaneously injects a rigid plastic and soft TPE in a single cycle using rotating platens. Drastically optimizes cycle times and guarantees perfect aesthetic interfaces.<\/td>\n<\/tr>\n
Standard Injection Molding<\/td>\nExcellent. Ideal for standalone, highly flexible elastomeric parts like grommets, expansion boots, plugs, and dynamic seals.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/section>\n

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Thermoplastic Elastomer (TPE) Tooling & Injection Molding Guide<\/h2>\n

To prevent issues like poor substrate bonding, surface silver streaks, or flashing, our scientific molding process is strictly implemented:<\/p>\n

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  • Pre-Drying:<\/strong> TPE materials are mildly hygroscopic. Pre-drying raw resin at 60\u00b0C\u201380\u00b0C (140\u00b0F to 176\u00b0F) for 2\u20133 hours is necessary to prevent surface silver streaks, bubbles, and compromised bonding strength.<\/li>\n
  • \u7194\u81a0\u6eab\u5ea6\uff1a<\/strong> Strictly processed between 170\u00b0C and 210\u00b0C (338\u00b0F to 410\u00b0F). Overheating can degrade the elastomeric blocks and reduce melt viscosity, leading to severe flashing.<\/li>\n
  • \u6a21\u5177\u6eab\u5ea6\uff1a<\/strong> Kept low between 20\u00b0C and 50\u00b0C (68\u00b0F to 122\u00b0F). Rapid mold cooling is necessary to solidify the rubber phase quickly, ensuring optimal demolding and shorter cycle times.<\/li>\n
  • Chemical Compatibility for Overmolding:<\/strong> Thermal bonding relies on interfacial molecular diffusion. Jucheng\u2019s engineering division carefully selects customized TPE grades chemically formulated to match the surface energy of specific substrate plastics (e.g., PP, ABS, or Nylon) to prevent peeling.<\/li>\n
  • High Shrinkage Control:<\/strong> TPE exhibits high shrinkage (typically 1.2% to 2.5% depending on hardness and grade). Our in-house tooling division uses 5-axis CNC machines to achieve precise scaling on tool cavities to secure strict tolerances.<\/li>\n<\/ul>\n<\/section>\n

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    Key Application Industries for Molded TPE Components<\/h2>\n
      \n
    • Consumer & Hand Tools:<\/strong> Soft-touch grips for screwdrivers, drill handles, electric toothbrushes, kitchenware handles, and cosmetic container caps.<\/li>\n
    • Automotive Interiors & Seals (IATF 16949 Certified):<\/strong> Weatherstripping profiles, window guide seals, cup holder liners, interior anti-slip mats, and flexible steering rack boots.<\/li>\n
    • Medical & Healthcare Devices (ISO 13485 Compliant):<\/strong> Biocompatible syringe plunger tips, soft-touch buttons on monitoring equipment, medical ventilator seals, and dental tool handles.<\/li>\n
    • Consumer Electronics & Telecom:<\/strong> Protective phone bumper surrounds, wire cable relief boots, sealing gaskets for outdoor electronic enclosures, and earbud grips.<\/li>\n<\/ul>\n<\/section>\n<\/div>","protected":false},"excerpt":{"rendered":"

      Comprehensive TPE Grades We Mold We process high-performance Thermoplastic Elastomer formulations from world-leading synthesizers, specialized for excellent bonding, soft-touch cosmetics, and sealing functions: TPE Material Class Typical Brand & Grade Key Characteristics & Advantages SBC-based (TPE-S) \/ Overmolding \u2022 KRAIBURG Thermolast K TC5GPZ \u2022 Avient GLS Versaflex OM 1040X \u2022 Kraton G2705 \/ G7820 \u2022 […]<\/p>\n","protected":false},"featured_media":2413,"template":"","meta":[],"material_type":[19],"application_feature":[],"machining_process":[],"class_list":["post-2334","material","type-material","status-publish","has-post-thumbnail","hentry","material_type-thermoplastic-elastomers-tpe-tpu"],"_links":{"self":[{"href":"https:\/\/www.jcinjectionmolding.com\/zh_hk\/wp-json\/wp\/v2\/material\/2334","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.jcinjectionmolding.com\/zh_hk\/wp-json\/wp\/v2\/material"}],"about":[{"href":"https:\/\/www.jcinjectionmolding.com\/zh_hk\/wp-json\/wp\/v2\/types\/material"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.jcinjectionmolding.com\/zh_hk\/wp-json\/wp\/v2\/media\/2413"}],"wp:attachment":[{"href":"https:\/\/www.jcinjectionmolding.com\/zh_hk\/wp-json\/wp\/v2\/media?parent=2334"}],"wp:term":[{"taxonomy":"material_type","embeddable":true,"href":"https:\/\/www.jcinjectionmolding.com\/zh_hk\/wp-json\/wp\/v2\/material_type?post=2334"},{"taxonomy":"application_feature","embeddable":true,"href":"https:\/\/www.jcinjectionmolding.com\/zh_hk\/wp-json\/wp\/v2\/application_feature?post=2334"},{"taxonomy":"machining_process","embeddable":true,"href":"https:\/\/www.jcinjectionmolding.com\/zh_hk\/wp-json\/wp\/v2\/machining_process?post=2334"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}