{"id":2472,"date":"2026-05-30T10:21:09","date_gmt":"2026-05-30T02:21:09","guid":{"rendered":"https:\/\/www.jcinjectionmolding.com\/?p=2472"},"modified":"2026-06-29T15:13:19","modified_gmt":"2026-06-29T07:13:19","slug":"peek-solvay-ketaspire-kt-820","status":"publish","type":"material_model","link":"https:\/\/www.jcinjectionmolding.com\/ja\/materials\/polyetheretherketone-peek\/peek-solvay-ketaspire-kt-820\/","title":{"rendered":"PEEK-Solvay KetaSpire KT-820"},"content":{"rendered":"
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KetaSpire KT-820 Low-Flow Structural & High-Purity Profile<\/h2>\n

KetaSpire\u00ae KT-820 is an unreinforced, low-flow semi-crystalline Polyetheretherketone resin, lightly dusted with calcium stearate to aid pellet plastication, engineered to deliver best-in-class fatigue resistance:<\/p>\n\n\n\n\n\n\n\n
\u7269\u7406\u4e0e\u5f3a\u5ea6\u53c2\u6570<\/th>\nKetaSpire KT-820 Spec Metric<\/th>\nDynamic Molding Advantage<\/th>\n<\/tr>\n<\/thead>\n
Fatigue & Creep Life<\/td>\nBest-in-class fatigue cycle resistance<\/td>\nLow-flow long polymer chain entanglement delivers superior resistance to high-frequency load stress and micro-creeping over years of operation.<\/td>\n<\/tr>\n
Melt Viscosity Profile<\/td>\nLow Flow 3.0 g\/10 min MFR (400\u00b0C x 2.16kg)<\/td>\nProvides extremely high melt strength and viscosity uniformity, preventing parting line flashing under high-pressure dynamic packs.<\/td>\n<\/tr>\n
\u6ec5\u83cc\u9069\u5fdc\u6027<\/td>\nAutoclave, EtO, and Gamma Resistant<\/td>\nExhibits exceptional resistance to mechanical and chemical property shifts even after hundreds of steam sterilization cycles.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/section>\n

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Process & Dynamic Load Configurations for Low-Flow KT-820<\/h2>\n

With high molecular weight and robust melt strength, KetaSpire KT-820 processes predictably inside high-pressure tools:<\/p>\n\n\n\n\n\n\n\n
\u6210\u5f62\u30d7\u30ed\u30bb\u30b9\u5206\u985e<\/th>\n\u30d7\u30ed\u30bb\u30b9\u4e92\u63db\u6027\u3068\u904b\u7528\u8a73\u7d30<\/th>\n<\/tr>\n<\/thead>\n
Heavy-Duty Subsea Connector Seals<\/td>\nExcellent. The primary process for KT-820. Perfectly optimized for high-pressure downhole packer seals, dynamic oil-gas seal rings, and subsea connectors.<\/td>\n<\/tr>\n
Autoclavable Medical Components<\/td>\nExcellent. Run inside our ISO Class 7\/8 cleanrooms to mold highly complex orthopedic targeting caps, surgical dental trial screws, and clinical tubing adapters.<\/td>\n<\/tr>\n
High-Wear Dynamic Bushings<\/td>\nExcellent. Highly suitable for structural sliding bearing blocks, dynamic silent gears, wear rings, and heavy-load valve seats in chemical processing.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/section>\n

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PEEK-Solvay KetaSpire KT-820 High-Temperature Tooling Matrix<\/h2>\n

Molding an unreinforced, high-viscosity semi-crystalline polymer like KetaSpire KT-820 requires high injection pressure profiles and exact thermal controls to prevent voids:<\/p>\n

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High-Temperature Pressurized Oil Mold Heating<\/p>\n

To secure the proper semi-crystalline phase (giving PEEK its signature opaque beige color, chemical inertness, and strength), mold temperatures must be maintained continuously at 175\u00b0C\u2013205\u00b0C (347\u00b0F to 401\u00b0F) using pressurized oil-heating controllers. Cold molds cause the melt to freeze amorphous, turning parts translucent brown and mechanically weak.<\/p>\n<\/div>\n

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High-Viscosity Gate and Runner Sizing<\/p>\n

With a low melt flow rate of 3.0, KT-820 is highly viscous. Gates must be sized generously (minimum 70% of part wall thickness) and sprues polished to avoid dynamic pressure drops and high shear stress, which can cause surface splay and gate blush near complex ribs.<\/p>\n<\/div>\n

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S136 Mirror-Polished Tooling (Corrosion Protection)<\/p>\n

Due to the extreme clamping pressures and melt velocities of PEEK KT-820, Jucheng\u2019s tooling division uses hardened, corrosion-resistant S136 stainless steel molds. We heat-treat cavities to 52 HRC and design generous draft angles (minimum 1.5\u00b0 to 2.0\u00b0) to ensure clean part release.<\/p>\n<\/div>\n

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Extended Desiccant Pre-Drying<\/p>\n

While PEEK absorbs minimal water, moisture causes hydrolytic splay and weld line degradation. We desiccant-dry KetaSpire KT-820 resin at 150\u00b0C (302\u00b0F) for 4 hours, keeping internal moisture below 0.02% to secure optimal molecular bonds.<\/p>\n<\/div>\n<\/div>\n<\/section>\n

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Key Application Fields for PEEK-Solvay KetaSpire KT-820<\/h2>\n
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  • \u77f3\u6cb9\u30fb\u30ac\u30b9\u63a2\u67fb\u30fb\u751f\u7523\uff1a<\/strong> Downhole packer elements, subsea electrical connectors, dynamic chemical valve seats, compressor seals, and pump vanes.<\/li>\n
  • \u533b\u7642\u30fb\u6b6f\u79d1\u6a5f\u5668\uff08ISO 13485\u8a8d\u8a3c\uff09\uff1a<\/strong> Spinal fusion cages, temporary dental healing caps, surgical trial instruments, orthopedic targeting blocks, and diagnostic manifolds.<\/li>\n
  • Automotive & Chemical Processing (IATF 16949):<\/strong> High-wear thrust washers, transmission seal rings, chemical spray nozzles, gas flow meters, and hot-water pump gears.<\/li>\n<\/ul>\n<\/section>\n<\/div>","protected":false},"excerpt":{"rendered":"

    KetaSpire KT-820 Low-Flow Structural & High-Purity Profile KetaSpire\u00ae KT-820 is an unreinforced, low-flow semi-crystalline Polyetheretherketone resin, lightly dusted with calcium stearate to aid pellet plastication, engineered to deliver best-in-class fatigue resistance: Physical & Strength Parameter KetaSpire KT-820 Spec Metric Dynamic Molding Advantage Fatigue & Creep Life Best-in-class fatigue cycle resistance Low-flow long polymer chain entanglement delivers superior resistance to high-frequency load stress and micro-creeping over years of operation. Melt Viscosity Profile Low Flow 3.0 g\/10 min MFR (400\u00b0C x 2.16kg) Provides extremely high melt strength and viscosity uniformity, preventing parting line flashing under high-pressure dynamic packs. Sterilization Adaptability Autoclave, EtO, and Gamma Resistant Exhibits exceptional resistance to mechanical and chemical […]<\/p>\n","protected":false},"featured_media":2473,"template":"","meta":[],"class_list":["post-2472","material_model","type-material_model","status-publish","has-post-thumbnail","hentry"],"_links":{"self":[{"href":"https:\/\/www.jcinjectionmolding.com\/ja\/wp-json\/wp\/v2\/material_model\/2472","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.jcinjectionmolding.com\/ja\/wp-json\/wp\/v2\/material_model"}],"about":[{"href":"https:\/\/www.jcinjectionmolding.com\/ja\/wp-json\/wp\/v2\/types\/material_model"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.jcinjectionmolding.com\/ja\/wp-json\/wp\/v2\/media\/2473"}],"wp:attachment":[{"href":"https:\/\/www.jcinjectionmolding.com\/ja\/wp-json\/wp\/v2\/media?parent=2472"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}