{"id":2389,"date":"2026-05-23T16:18:09","date_gmt":"2026-05-23T08:18:09","guid":{"rendered":"https:\/\/www.jcinjectionmolding.com\/?p=2389"},"modified":"2026-06-29T10:48:05","modified_gmt":"2026-06-29T02:48:05","slug":"pc-teijin-panlite-l-1250y","status":"publish","type":"material_model","link":"https:\/\/www.jcinjectionmolding.com\/vi\/materials\/polycarbonate-pc\/pc-teijin-panlite-l-1250y\/","title":{"rendered":"PC-Teijin Panlite L-1250Y"},"content":{"rendered":"
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Teijin Panlite L-1250Y Optical & Physical Profile<\/h2>\n

Panlite\u00ae L-1250Y is a premium, medium-viscosity polycarbonate resin engineered by Teijin Limited to deliver excellent optical clarity, high dimensional stability, and easy mold release:<\/p>\n\n\n\n\n\n\n\n
Physical & Optical Attribute<\/th>\nPanlite L-1250Y Nominal Metric<\/th>\nOptical Molding Advantage<\/th>\n<\/tr>\n<\/thead>\n
Light Transmittance<\/td>\n88.0% Optical Transmission (3.0 mm)<\/td>\nDelivers brilliant, crystal-clear transparency directly from mirror-polished core cavities. Ideal for protective covers, light guides, and display lenses.<\/td>\n<\/tr>\n
Chi\u1ebft su\u1ea5t<\/td>\nHigh Refractive Index 1.585<\/td>\nOptimizes light ray guidance and dispersion within thick-walled ambient light pipes, eliminating internal refraction loss.<\/td>\n<\/tr>\n
Thermal Resistance<\/td>\nVicat Softening Point 149\u00b0C<\/td>\nMaintains unyielding structural geometry under high operational heat, perfectly suited for automotive headlights and industrial sensor casings.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/section>\n

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Process & Flow Capability for Medium-Viscosity Panlite L-1250Y<\/h2>\n

With intermediate melt viscosity and built-in release additives, Panlite L-1250Y solidifies predictably to yield clear structures:<\/p>\n\n\n\n\n\n\n\n
Quy tr\u00ecnh \u0111\u00fac<\/th>\nKh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch \u0110\u00fac & Chi ti\u1ebft V\u1eadn h\u00e0nh<\/th>\n<\/tr>\n<\/thead>\n
General Purpose Clear Molding<\/td>\nExcellent. Fully optimized for high-transparency surveillance camera domes, thick-walled lightguides, prisms, and optical lenses.<\/td>\n<\/tr>\n
Outdoor Lens Enclosures<\/td>\nExcellent. Ideal for heavy-duty industrial electricity meter covers, safety helmets, marine signal lens caps, and protective shields.<\/td>\n<\/tr>\n
Multi-Cavity Unmanned Runs<\/td>\nExcellent. Built-in, high-efficiency mold release additives facilitate rapid and clean ejection, avoiding part scuffing during automated runs.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/section>\n

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PC-Teijin Panlite L-1250Y Tooling & Optical Defect Mitigation Guide<\/h2>\n

Molding an optical-grade, medium-viscosity resin like Panlite L-1250Y requires precise mold temperature control and zero-moisture drying to protect optical clarity:<\/p>\n

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  • Pristine Optical Polishing (S136 steel):<\/strong> Microscopic tool marks on core or cavity surfaces will scatter light, causing optical haze. Jucheng\u2019s tooling division uses premium S136 stainless steel mold cavity inserts, mirror-polished to a high level, ensuring parts emerge with flawless, glass-like clarity.<\/li>\n
  • Desiccant Drying & Splay Prevention:<\/strong> Wet PC is highly susceptible to hydrolytic polymer chain fracture, destroying mechanical strength and causing splay or silver streaks. We dry raw resin in desiccant hopper dryers at 120\u00b0C (248\u00b0F) for 3\u20134 hours, keeping moisture strictly below 0.02%.<\/li>\n
  • Low Internal Stress (Molding Temperatures):<\/strong> Processing barrel temperatures are maintained between 280\u00b0C and 320\u00b0C (536\u00b0F to 608\u00b0F). Mold temperatures are kept at 80\u00b0C to 110\u00b0C (176\u00b0F to 230\u00b0F) to ensure maximum gloss and reduce residual internal molding stresses.<\/li>\n
  • Shrinkage & Warpage:<\/strong> Panlite L-1250Y exhibits low and highly uniform shrinkage (0.5% to 0.7%). We machine balanced, conformal cooling circuits directly into core blocks to speed up heat dissipation, further reducing cycle times and preventing thermal warpage.<\/li>\n<\/ul>\n<\/section>\n

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    Key Application Fields for PC-Teijin Panlite L-1250Y<\/h2>\n
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    • Automotive Lighting & Guides (IATF 16949):<\/strong> Ambient lightguides, headlight lenses, clear rear light covers, dashboard buttons, and sunroof frames.<\/li>\n
    • Electrical & Smart-Grid Hardware:<\/strong> Transparent power meter covers, high-voltage connector blocks, outdoor industrial switch boxes, and LED panel housings.<\/li>\n
    • Consumer & Safety Products:<\/strong> Protective face shields, surveillance camera domes, safety helmets, clear cups, and structural drone components.<\/li>\n<\/ul>\n<\/section>\n<\/div>","protected":false},"excerpt":{"rendered":"

      Teijin Panlite L-1250Y Optical & Physical Profile Panlite\u00ae L-1250Y is a premium, medium-viscosity polycarbonate resin engineered by Teijin Limited to deliver excellent optical clarity, high dimensional stability, and easy mold release: Physical & Optical Attribute Panlite L-1250Y Nominal Metric Optical Molding Advantage Light Transmittance 88.0% Optical Transmission (3.0 mm) Delivers brilliant, crystal-clear transparency directly from […]<\/p>\n","protected":false},"featured_media":2390,"template":"","meta":[],"class_list":["post-2389","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\/2389","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\/2390"}],"wp:attachment":[{"href":"https:\/\/www.jcinjectionmolding.com\/vi\/wp-json\/wp\/v2\/media?parent=2389"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}