{"id":2385,"date":"2026-05-23T15:42:52","date_gmt":"2026-05-23T07:42:52","guid":{"rendered":"https:\/\/www.jcinjectionmolding.com\/?p=2385"},"modified":"2026-06-29T10:32:26","modified_gmt":"2026-06-29T02:32:26","slug":"pc-covestro-makrolon-2407","status":"publish","type":"material_model","link":"https:\/\/www.jcinjectionmolding.com\/vi\/materials\/polycarbonate-pc\/pc-covestro-makrolon-2407\/","title":{"rendered":"PC-Covestro Makrolon 2407"},"content":{"rendered":"
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Makrolon 2407 Optical and UV Performance Profile<\/h2>\n

Makrolon\u00ae 2407 is a low-viscosity, UV-stabilized general purpose polycarbonate resin engineered by Covestro to deliver glass-like clarity, high impact strength, and weathering resistance:<\/p>\n\n\n\n\n\n\n\n
Performance Parameter<\/th>\nMakrolon 2407 Typical Value<\/th>\nMolding & Outdoor Use Advantage<\/th>\n<\/tr>\n<\/thead>\n
UV Stabilization<\/td>\nInherent Weather-Stable Package<\/td>\nIncorporates specialized UV absorbers, preventing long-term yellowing, embrittlement, and loss of clarity under direct sunlight exposure.<\/td>\n<\/tr>\n
Low Melt Viscosity<\/td>\nMVR 19 cm\u00b3\/10min (300\u00b0C x 1.2kg)<\/td>\nEnsures a highly fluid flow, allowing molten polymer to fill long and extremely thin-walled visual sections without flow marks.<\/td>\n<\/tr>\n
Impact Toughness<\/td>\nNotched Izod Impact 65 kJ\/m\u00b2<\/td>\nDelivers outstanding mechanical toughness and shatterproof safety, ideal for outdoor protective domes and lenses.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/section>\n

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Process Compatibility for Low-Viscosity Makrolon 2407<\/h2>\n

With a low-viscosity melt behavior, Makrolon 2407 flows smoothly to produce highly precise, glass-clear outer components:<\/p>\n\n\n\n\n\n\n\n
Molding Technology<\/th>\nProcess Compatibility & Operational Details<\/th>\n<\/tr>\n<\/thead>\n
Thin-Wall Outdoor Housings<\/td>\nExcellent. Fully optimized for high-transparency surveillance camera domes, thin-walled sensor covers, and outdoor light pipe conduits.<\/td>\n<\/tr>\n
Clear Protective Shields<\/td>\nExcellent. Ideal for heavy-duty industrial control screens, safety shields, marine lighting covers, and agricultural machine visors.<\/td>\n<\/tr>\n
Multi-Cavity Optical Lenses<\/td>\nExcellent. The easy mold release additives combined with low melt viscosity prevent part sticking and stress cracking in multi-cavity tool runs.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/section>\n

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PC-Covestro Makrolon 2407 Tooling & UV Cosmetic Integrity Guide<\/h2>\n

Molding an amorphous, low-viscosity resin like Makrolon 2407 requires tight parting-line clearances to prevent flashing, alongside highly uniform mold temperature profiles:<\/p>\n

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  • Micro-Gap Flash Control (Tooling Precision):<\/strong> Because Makrolon 2407 has low viscosity, molten resin can seep easily into mold parting line gaps, causing unsightly flashing. Jucheng\u2019s tooling division uses 5-axis CNC machines to achieve micro-tolerances, keeping mold parting clearances strictly within 0.01mm on premium S136 stainless steel mold cavity blocks.<\/li>\n
  • Desiccant Drying & Splay Prevention:<\/strong> Wet polycarbonate 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
  • Molding Temperature Controls:<\/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
  • Low & Stable Shrinkage:<\/strong> Makrolon 2407 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-Covestro Makrolon 2407<\/h2>\n
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    • Outdoor Lighting & Infrastructure:<\/strong> Transparent surveillance camera dome covers, solar panel housings, high-efficiency light pipes, marine signal covers, and streetlamp refractors.<\/li>\n
    • Electrical & Smart-Grid Hardware:<\/strong> High-voltage outdoor circuit breakers, transparent power meter covers, industrial switch boxes, and LED outdoor panel diffusers.<\/li>\n
    • Automotive & Public Infrastructure:<\/strong> High-impact safety face shields, tractor cabin window visors, outdoor charging dock screens, and structural public transit lenses.<\/li>\n<\/ul>\n<\/section>\n<\/div>","protected":false},"excerpt":{"rendered":"

      Makrolon 2407 Optical and UV Performance Profile Makrolon\u00ae 2407 is a low-viscosity, UV-stabilized general purpose polycarbonate resin engineered by Covestro to deliver glass-like clarity, high impact strength, and weathering resistance: Performance Parameter Makrolon 2407 Typical Value Molding & Outdoor Use Advantage UV Stabilization Inherent Weather-Stable Package Incorporates specialized UV absorbers, preventing long-term yellowing, embrittlement, and […]<\/p>\n","protected":false},"featured_media":2386,"template":"","meta":[],"class_list":["post-2385","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\/2385","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\/2386"}],"wp:attachment":[{"href":"https:\/\/www.jcinjectionmolding.com\/vi\/wp-json\/wp\/v2\/media?parent=2385"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}