{"id":2578,"date":"2026-06-17T17:30:22","date_gmt":"2026-06-17T09:30:22","guid":{"rendered":"https:\/\/www.jcinjectionmolding.com\/?p=2578"},"modified":"2026-06-30T16:20:41","modified_gmt":"2026-06-30T08:20:41","slug":"pc-sabic-lexan-940a","status":"publish","type":"material_model","link":"https:\/\/www.jcinjectionmolding.com\/vi\/materials\/flame-retardant-fr\/pc-sabic-lexan-940a\/","title":{"rendered":"PC-SABIC Lexan 940A"},"content":{"rendered":"
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SABIC Lexan 940A Flammability & Toughness Profile<\/h2>\n

LEXAN\u2122 Resin 940A is an unreinforced, standard-flow amorphous Polycarbonate (PC) resin, certified to deliver outstanding strength, impact stiffness, and continuous thermal resistance under ISO\/ASTM standards:<\/p>\n\n\n\n\n\n\n\n
Ti\u00eau chu\u1ea9n ch\u1ed1ng ch\u00e1y v\u00e0 hi\u1ec7u su\u1ea5t<\/th>\nSABIC Lexan 940A Metric Value<\/th>\nMolding & Electrical Safety Advantage<\/th>\n<\/tr>\n<\/thead>\n
UL 94 V-0 Flame Rating<\/td>\nV-0 Rated at 1.0 mm Wall Thickness<\/td>\nProvides exceptional self-extinguishing safety in thin-walled housings, preventing dynamic heat buildup and flame propagation.<\/td>\n<\/tr>\n
UL 94 5VA Flame Rating<\/td>\n5VA Rated at 3.0 mm Wall Thickness<\/td>\nCh\u1ed1ng ch\u1ecbu ng\u1ecdn l\u1eeda thanh h\u1edf l\u1edbn m\u00e0 kh\u00f4ng b\u1ecb ch\u00e1y xuy\u00ean qua k\u1ebft c\u1ea5u. C\u1ea7n thi\u1ebft cho h\u1ed9p ph\u00e2n ph\u1ed1i \u0111i\u1ec7n cao th\u1ebf.<\/td>\n<\/tr>\n
Impact Toughness<\/td>\nASTM Notched Izod Impact 640 J\/m<\/td>\nUnreinforced amorphous matrix provides exceptional mechanical drop-test and impact resilience compared to standard rigid PC.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/section>\n

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Structural Component Process Configurations for Flame-Retardant Lexan 940A<\/h2>\n

With its high-flow melt performance and low mold shrinkage, Lexan 940A processes consistently inside complex mold geometries:<\/p>\n\n\n\n\n\n\n\n
Molding Process Category<\/th>\nProcess Compatibility & Operational Details<\/th>\n<\/tr>\n<\/thead>\n
Thin-Wall Electronics Molding<\/td>\nExcellent. Highly optimized for high-transparency microelectronic housings, smart-meter accessories, and intricate connector frames.<\/td>\n<\/tr>\n
Heavy-Duty Electrical Brackets<\/td>\nExcellent. High tensile modulus and exceptional flame retardancy prevent structural distortion or deformation in smart grids.<\/td>\n<\/tr>\n
Power Supply Housings<\/td>\nExcellent. Outstanding dimensional stability, low outgassing, and excellent high-temperature creep resistance prevent structural distortion.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/section>\n

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Amorphous Self-Extinguishing Molding Matrix<\/h2>\n

Molding an amorphous high-performance resin like Lexan 940A requires strict thermal boundaries and low-stress mold setups to prevent stress-cracking:<\/p>\n

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Amorphous Isotropic Shrinkage Control<\/p>\n

Being an amorphous copolymer, Lexan 940A exhibits low and highly uniform shrinkage (0.50% to 0.70%). We use our 5-axis CNC machines to cut precise mold cavities and balance cooling paths, ensuring zero warping and zero dimension defects on Zeiss CMM verification.<\/p>\n<\/div>\n

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High Melt Temperature Profiling<\/p>\n

Melting requires specialized machines with ceramic heater bands. Processing barrel temperatures are strictly managed between 280\u00b0C and 310\u00b0C (536\u00b0F to 590\u00b0F) to ensure homogeneous flow. Exceeding 320\u00b0C can result in chemical chain fracturing and polymer degradation.<\/p>\n<\/div>\n

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

We maintain mold temperatures at 80\u00b0C\u2013120\u00b0C (176\u00b0F to 248\u00b0F) using pressurized water heaters. High mold temperatures maximize surface gloss, reduce weld lines, and prevent surface carbon-fibers from floating, ensuring a smooth and non-fibrous finish.<\/p>\n<\/div>\n

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Desiccant Drying & Volatiles Exhaust (Hydrolysis Prevention)<\/p>\n

PC is highly sensitive to moisture at high melt temperatures. Wet molding results in rapid hydrolytic chain cleavage, causing severe splay, gas bubbles, and a major drop in impact strength. We desiccant dry Lexan 940A resin at 120\u00b0C (248\u00b0F) for 3\u20134 hours, keeping moisture below 0.02%.<\/p>\n<\/div>\n<\/div>\n<\/section>\n

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Key Application Fields for PC-SABIC Lexan 940A<\/h2>\n
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  • Smart-Grids & Electrical Infrastructure:<\/strong> M\u00e1y c\u1eaft \u0111i\u1ec7n cao th\u1ebf, \u0111\u1ed3ng h\u1ed3 \u0111i\u1ec7n th\u00f4ng minh, kh\u1ed1i \u0111\u1ea5u d\u00e2y, v\u1ecf r\u01a1 le \u0111i\u1ec7n, khung c\u00f4ng t\u1eafc \u00e2m t\u01b0\u1eddng v\u00e0 \u1ed1ng qu\u1ea5n cu\u1ed9n d\u00e2y.<\/li>\n
  • EV Charging & Automotive Systems (IATF 16949):<\/strong> V\u1ecf s\u00fang s\u1ea1c xe \u0111i\u1ec7n, n\u1eafp h\u1ed9p n\u1ed1i \u0111i\u1ec7n cao th\u1ebf, v\u1ecf c\u1ea7u ch\u00ec n\u1ed9i th\u1ea5t v\u00e0 v\u1ecf c\u1ea3m bi\u1ebfn xe.<\/li>\n
  • Consumer Electronics & Telecommunications:<\/strong> Wi-Fi router enclosures, charger adapter bodies, power tool housings, and set-top boxes.<\/li>\n<\/ul>\n<\/section>\n<\/div>","protected":false},"excerpt":{"rendered":"

    SABIC Lexan 940A Flammability & Toughness Profile LEXAN\u2122 Resin 940A is an unreinforced, standard-flow amorphous Polycarbonate (PC) resin, certified to deliver outstanding strength, impact stiffness, and continuous thermal resistance under ISO\/ASTM standards: Flammability & Performance Standard SABIC Lexan 940A Metric Value Molding & Electrical Safety Advantage UL 94 V-0 Flame Rating V-0 Rated at 1.0 […]<\/p>\n","protected":false},"featured_media":2529,"template":"","meta":[],"class_list":["post-2578","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\/2578","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\/2529"}],"wp:attachment":[{"href":"https:\/\/www.jcinjectionmolding.com\/vi\/wp-json\/wp\/v2\/media?parent=2578"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}