{"id":2315,"date":"2026-05-21T11:33:04","date_gmt":"2026-05-21T03:33:04","guid":{"rendered":"https:\/\/www.jcinjectionmolding.com\/?p=2315"},"modified":"2026-06-30T17:15:22","modified_gmt":"2026-06-30T09:15:22","slug":"polycarbonate-pc","status":"publish","type":"material","link":"https:\/\/www.jcinjectionmolding.com\/ko\/materials\/polycarbonate-pc\/","title":{"rendered":"Polycarbonate (PC)"},"content":{"rendered":"
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Comprehensive Polycarbonate (PC) Grades We Mold<\/h2>\n

We process premium-grade Polycarbonate resins from world-class compounders to meet high-clarity, high-strength, and fire-resistant structural requirements:<\/p>\n\n\n\n\n\n\n\n\n
PC Material Class<\/th>\nTypical Brand & Grade<\/th>\nKey Characteristics & Advantages<\/th>\n<\/tr>\n<\/thead>\n
Optical \/ High Flow<\/td>\n\u2022 Sabic Lexan 141R \/ HF1110
\n\u2022 Covestro Makrolon 2407 \/ 2805
\n\u2022 Teijin Panlite L-1250Y<\/td>\n		Exceptional optical clarity, light transmission (up to 90%), and high melt flow. UV-stabilized options available. Ideal for light guides, lenses, and safety goggles.<\/td>\n<\/tr>\n
Flame Retardant (FR)<\/td>\n\u2022 Sabic Lexan 940A \/ 943A
\n\u2022 Covestro Makrolon 6557
\n\u2022 Teijin Panlite LN-1250G<\/td>\n		UL 94 V-0 non-chlorinated and non-brominated flame retardant ratings. Excellent impact retention. Perfect for electronic housings, switches, and industrial enclosures.<\/td>\n<\/tr>\n
Medical Grade<\/td>\n\u2022 Sabic Lexan HP1 \/ HP2
\n\u2022 Covestro Makrolon Rx1805 \/ Rx2440<\/td>\n		ISO 10993 and USP Class VI compliant. Highly resistant to gamma radiation, ETO, and autoclave sterilization. Suited for surgical tools, dialyzers, and fluid connectors.<\/td>\n<\/tr>\n
Glass-Filled Reinforced<\/td>\n\u2022 Sabic Lexan 3412 (20% GF)
\n\u2022 Mitsubishi Iupilon GS-2030 (30% GF)<\/td>\n		Reinforced with glass fibers for drastically increased flexural strength, tensile modulus, and thermal deformation resistance. Applied in structural gears, frames, and automotive brackets.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/section>\n

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Applicable Molding Processes for Polycarbonate (PC)<\/h2>\n

Because Polycarbonate possesses high mechanical rigidity and high viscosity, it requires scientific process profiling:<\/p>\n\n\n\n\n\n\n\n\n
Molding Process<\/th>\nProcess Suitability & Application<\/th>\n<\/tr>\n<\/thead>\n
Standard Injection Molding<\/td>\nExcellent. Highly recommended for clear optical lenses, protective face shields, and high-strength industrial enclosures.<\/td>\n<\/tr>\n
Thin-Wall Molding<\/td>\nModerate to Good. Requires specialized high-flow PC resins and high-pressure injection to fill thin-walled designs without freeze-off.<\/td>\n<\/tr>\n
Insert Molding<\/td>\nExcellent. Ideal for encapsulating metal threaded inserts or connectors directly into heavy-duty electrical components to prevent weld-line stress.<\/td>\n<\/tr>\n
Overmolding \/ Multi-Shot<\/td>\nExcellent. Frequently overmolded with TPU or TPE to create rubber-like soft-touch grips on clear medical syringe handles or rugged enclosures.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/section>\n

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Polycarbonate (PC) Injection Molding Technical Guide<\/h2>\n

Polycarbonate possesses high melt viscosity and is highly sensitive to moisture. Inadequate drying or poorly controlled thermal cycles can result in micro-cracks or loss of optical clarity:<\/p>\n

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  • Pre-Drying:<\/strong> PC is highly hygroscopic. Moisture levels must be kept below 0.02% to prevent hydrolytic degradation. We dry the raw resin in desiccant dryers at 120\u00b0C (248\u00b0F) for 3\u20134 hours prior to molding.<\/li>\n
  • Melt Temperature:<\/strong> Processed at high temperatures, typically between 280\u00b0C and 320\u00b0C (536\u00b0F to 608\u00b0F). Thermal degradation can occur if temperatures exceed 340\u00b0C.<\/li>\n
  • Mold Temperature:<\/strong> Mold temperatures must be kept high, ranging from 80\u00b0C to 120\u00b0C (176\u00b0F to 248\u00b0F). This minimizes internal stresses, prevents knit lines, and ensures a highly polished surface.<\/li>\n
  • Draft Angles:<\/strong> Because PC is exceptionally rigid and contracts tightly onto core pins during cooling, generous draft angles of 1.5\u00b0 to 2\u00b0 are necessary to prevent ejection stress marks.<\/li>\n
  • Molding Pressure:<\/strong> Due to PC’s high viscosity, significant injection and holding pressures are applied. Proper packing is mandatory to counteract the 0.5%\u20130.7% volumetric shrinkage and eliminate voiding in thick walls.<\/li>\n<\/ul>\n<\/section>\n

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    Key Application Industries for Molded PC Parts<\/h2>\n
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    • Medical Devices (ISO 13485 Certified):<\/strong> Hemodialysis dialyzer housings, surgical instrument handles, clear fluid connectors, blood filter casings, and inhaler components.<\/li>\n
    • Automotive Lighting (IATF 16949 Certified):<\/strong> Headlamp lenses, interior ambient light guides, rear light covers, dashboard buttons, and structural lens assemblies.<\/li>\n
    • Electrical & Electronics:<\/strong> High-voltage connector blocks, electricity meter housings, transparent cover panels, switch boxes, and LED diffusers.<\/li>\n
    • Consumer & Safety Products:<\/strong> Protective safety goggles, riot shields, bulletproof panels, clear water containers, and structural drone components.<\/li>\n<\/ul>\n<\/section>\n<\/div>","protected":false},"excerpt":{"rendered":"

      Comprehensive Polycarbonate (PC) Grades We Mold We process premium-grade Polycarbonate resins from world-class compounders to meet high-clarity, high-strength, and fire-resistant structural requirements: PC Material Class Typical Brand & Grade Key Characteristics & Advantages Optical \/ High Flow \u2022 Sabic Lexan 141R \/ HF1110 \u2022 Covestro Makrolon 2407 \/ 2805 \u2022 Teijin Panlite L-1250Y Exceptional optical […]<\/p>\n","protected":false},"featured_media":2402,"template":"","meta":[],"material_type":[21],"application_feature":[],"machining_process":[],"class_list":["post-2315","material","type-material","status-publish","has-post-thumbnail","hentry","material_type-engineering-plastics"],"_links":{"self":[{"href":"https:\/\/www.jcinjectionmolding.com\/ko\/wp-json\/wp\/v2\/material\/2315","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.jcinjectionmolding.com\/ko\/wp-json\/wp\/v2\/material"}],"about":[{"href":"https:\/\/www.jcinjectionmolding.com\/ko\/wp-json\/wp\/v2\/types\/material"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.jcinjectionmolding.com\/ko\/wp-json\/wp\/v2\/media\/2402"}],"wp:attachment":[{"href":"https:\/\/www.jcinjectionmolding.com\/ko\/wp-json\/wp\/v2\/media?parent=2315"}],"wp:term":[{"taxonomy":"material_type","embeddable":true,"href":"https:\/\/www.jcinjectionmolding.com\/ko\/wp-json\/wp\/v2\/material_type?post=2315"},{"taxonomy":"application_feature","embeddable":true,"href":"https:\/\/www.jcinjectionmolding.com\/ko\/wp-json\/wp\/v2\/application_feature?post=2315"},{"taxonomy":"machining_process","embeddable":true,"href":"https:\/\/www.jcinjectionmolding.com\/ko\/wp-json\/wp\/v2\/machining_process?post=2315"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}