{"id":2568,"date":"2026-06-17T16:53:35","date_gmt":"2026-06-17T08:53:35","guid":{"rendered":"https:\/\/www.jcinjectionmolding.com\/?p=2568"},"modified":"2026-06-30T14:21:46","modified_gmt":"2026-06-30T06:21:46","slug":"coc-topas-5013","status":"publish","type":"material_model","link":"https:\/\/www.jcinjectionmolding.com\/vi\/materials\/biocompatible-medical-grade-resin\/coc-topas-5013\/","title":{"rendered":"COC-TOPAS 5013"},"content":{"rendered":"
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TOPAS 5013S-04 Optical Clarity & Regulatory Compliance Profile<\/h2>\n

TOPAS\u00ae 5013S-04 is a high flow, unreinforced amorphous Cyclic Olefin Copolymer (COC) resin engineered by Polyplastics, certified to deliver outstanding light transmission, low birefringence, and high heat resistance for MedTech applications:<\/p>\n\n\n\n\n\n\n\n
Physical & Optical Attribute<\/th>\nTOPAS 5013S-04 Value<\/th>\nMedTech & Optical Advantage<\/th>\n<\/tr>\n<\/thead>\n
Light Transmittance<\/td>\n92.0% Optical Transmission (at 589nm)<\/td>\nDelivers glass-matching transparency and high refractive index directly from polished mold cavities, ideal for diagnostic cuvettes.<\/td>\n<\/tr>\n
Extreme Hydrophobicity<\/td>\nWater Absorption 0.010% (at 23\u00b0C saturation)<\/td>\nVirtually non-hygroscopic. Excludes environmental moisture swelling or volume shifting, preventing micro-volume diagnostic errors.<\/td>\n<\/tr>\n
L\u00e0m m\u1ec1m nhi\u1ec7t<\/td>\nVicat B50 Softening Temp 125\u00b0C<\/td>\nMaintains absolute structural stiffness and flat dimensional replication up to 130\u00b0C, fully resisting 95\u00b0C thermal PCR cycles.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/section>\n

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Biocompatible Process Configurations for Easy-Flow TOPAS 5013<\/h2>\n

With outstanding melt fluidity and amorphous stability, TOPAS 5013S-04 processes consistently inside microfluidic tools:<\/p>\n\n\n\n\n\n\n\n
Molding Process Category<\/th>\nProcess Compatibility & Operational Details<\/th>\n<\/tr>\n<\/thead>\n
Microfluidic Lab-on-a-Chip<\/td>\nExcellent. The primary process for TOPAS 5013. Optimized for multi-cavity, ultra-thin-walled medical diagnostics and biochips down to 0.1mm channels.<\/td>\n<\/tr>\n
Precision Cuvettes & Microplates<\/td>\nExcellent. Highly compatible with high-speed automated runs, providing low-noise optical windows and excellent chemical-solvent resistance.<\/td>\n<\/tr>\n
High-Accuracy Lenses & Optics<\/td>\nExcellent. Low dielectric constant and low birefringence are perfect for molding precise spherical lenses and optical diffusers.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/section>\n

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Optical Birefringence & Microfluidic Control Matrix<\/h2>\n

Molding an amorphous high-purity, easy-flow polymer like TOPAS 5013S-04 requires strict particulate controls and specialized tooling to prevent optical strain:<\/p>\n

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Low Birefringence & Stress Prevention<\/p>\n

High melt shear during injection causes internal molding stresses, resulting in birefringence (rainbow refraction effects). Jucheng’s tooling division uses 5-axis CNC machines to cut precise runner geometries, applying slow, uniform packing pressures to prevent optical stress marks.<\/p>\n<\/div>\n

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S136 Mirror-Polished Tooling (Purity Preservation)<\/p>\n

Any microscopic tool mark on core or cavity surfaces will scatter light and compromise optical clarity. We build molds using high-chromium S136 stainless steel, mirror-polished to a high level using clean diamond paste, ensuring non-porous biocompatible part surfaces with zero particulates.<\/p>\n<\/div>\n

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Pressurized Oil Mold Temperature Control<\/p>\n

We maintain mold temperatures at 95\u00b0C\u2013125\u00b0C (203\u00b0F to 257\u00b0F) using pressurized temperature controllers. High mold temperatures maximize surface gloss, reduce weld lines, and completely prevent weld-line stress cracking near intricate snap-fits.<\/p>\n<\/div>\n

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Mandatory Desiccant Pre-Drying Protocol<\/p>\n

Though COC absorbs virtually zero water, pre-drying raw material in clean-air desiccant hopper dryers at 100\u00b0C (212\u00b0F) for 6 hours is mandatory to prevent surface splay, dynamic micro-voids, and loss of transparent optical quality during high-speed runs.<\/p>\n<\/div>\n<\/div>\n<\/section>\n

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Key Application Fields for COC-TOPAS 5013<\/h2>\n
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  • Medical Diagnostics & Microfluidics:<\/strong> High-density microfluidic diagnostic chips, lab-on-a-chip diagnostic devices, cuvettes, assay plates, and pre-filled syringe barrels.<\/li>\n
  • High-End Optics & Lenses:<\/strong> Spherical and aspherical optical lenses, protective camera covers, light guides, and light diffusion plates.<\/li>\n
  • High-Tech Electronic Enclosures:<\/strong> Low dielectric constant chip carrier trays, semiconductor handling packaging, and transparent display window plates.<\/li>\n<\/ul>\n<\/section>\n<\/div>","protected":false},"excerpt":{"rendered":"

    TOPAS 5013S-04 Optical Clarity & Regulatory Compliance Profile TOPAS\u00ae 5013S-04 is a high flow, unreinforced amorphous Cyclic Olefin Copolymer (COC) resin engineered by Polyplastics, certified to deliver outstanding light transmission, low birefringence, and high heat resistance for MedTech applications: Physical & Optical Attribute TOPAS 5013S-04 Value MedTech & Optical Advantage Light Transmittance 92.0% Optical Transmission […]<\/p>\n","protected":false},"featured_media":2519,"template":"","meta":[],"class_list":["post-2568","material_model","type-material_model","status-publish","has-post-thumbnail","hentry"],"_links":{"self":[{"href":"https:\/\/www.jcinjectionmolding.com\/vi\/wp-json\/wp\/v2\/material_model\/2568","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.jcinjectionmolding.com\/vi\/wp-json\/wp\/v2\/material_model"}],"about":[{"href":"https:\/\/www.jcinjectionmolding.com\/vi\/wp-json\/wp\/v2\/types\/material_model"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.jcinjectionmolding.com\/vi\/wp-json\/wp\/v2\/media\/2519"}],"wp:attachment":[{"href":"https:\/\/www.jcinjectionmolding.com\/vi\/wp-json\/wp\/v2\/media?parent=2568"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}