{"id":2496,"date":"2026-05-30T15:56:03","date_gmt":"2026-05-30T07:56:03","guid":{"rendered":"https:\/\/www.jcinjectionmolding.com\/?p=2496"},"modified":"2026-06-29T16:44:25","modified_gmt":"2026-06-29T08:44:25","slug":"pei-sabic-ultem-9085","status":"publish","type":"material_model","link":"https:\/\/www.jcinjectionmolding.com\/vi\/materials\/polyetherimide-pei-ultem\/pei-sabic-ultem-9085\/","title":{"rendered":"PEI-SABIC Ultem 9085"},"content":{"rendered":"
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Ultem 9085 Flame-Smoke-Toxicity (FST) & Structural Profile<\/h2>\n

SABIC\u2122 ULTEM\u2122 Resin 9085 is an unreinforced amorphous Polyetherimide (PEI) blend, certified to deliver outstanding impact strength, low smoke density, and minimal toxic gas emission under international aviation standards:<\/p>\n\n\n\n\n\n\n\n
Aviation Safety Metric<\/th>\nUltem 9085 Rating\/Value<\/th>\nCabin Engineering Compliance<\/th>\n<\/tr>\n<\/thead>\n
FAA FAR Flammability<\/td>\nFAR 25.853 Compliance (60-sec vertical burn)<\/td>\nMeets strict commercial cabin requirements, ensuring self-extinguishing behavior and preventing fire propagation inside aircraft.<\/td>\n<\/tr>\n
OSU Heat Release<\/td>\nOSU 65 \/ 65 (Peak\/Total Heat Release)<\/td>\nLimits total heat release under 65 kW\/m\u00b2 during combustion, highly certified for passenger cabin walls and ceilings.<\/td>\n<\/tr>\n
Impact Ductility<\/td>\nTensile Elongation at Break ~50% to 100%<\/td>\nCopolymer alloy modification provides exceptional yield toughness, preventing brittle part shattering under sudden physical impact.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/section>\n

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High-Compliance Process Adaptability for Ultem 9085<\/h2>\n

With its high-impact modification and amorphous stability, SABIC Ultem 9085 processes consistently inside complex mold geometries:<\/p>\n\n\n\n\n\n\n\n
Aesthetic & Structural Process<\/th>\nProcess Compatibility & Operational Details<\/th>\n<\/tr>\n<\/thead>\n
Aircraft Cabin Interior Trims<\/td>\nExcellent. Configured with hot-runner gating to mold lightweight window frames, service trays, passenger storage latches, and interior covers.<\/td>\n<\/tr>\n
Environmental Control Systems<\/td>\nExcellent. Outstanding dimensional stability, low toxicity outgassing, and excellent flow-thickness ratio prevent structural warping inside aircraft air-ducting manifolds.<\/td>\n<\/tr>\n
Rail & Transport Enclosures<\/td>\nGood. Highly certified under EN 45545-2 railway fire safety requirements. Used for heavy-duty commercial bus and high-speed rail brackets.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/section>\n

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PEI-SABIC Ultem 9085 Tooling & Thermal Stress Management Blueprint<\/h2>\n

Molding an amorphous high-performance blend like Ultem 9085 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 blend, Ultem 9085 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 340\u00b0C and 380\u00b0C (644\u00b0F to 716\u00b0F) to ensure homogeneous flow. Exceeding 390\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

Pressurized oil heaters are utilized to maintain mold temperatures at 140\u00b0C\u2013180\u00b0C (284\u00b0F to 356\u00b0F). Maintaining high mold temperatures is critical to minimize molded-in stress, optimize surface gloss, and completely prevent weld-line stress cracking near intricate snap-fits.<\/p>\n<\/div>\n

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

PEI is highly hygroscopic. Moisture causes cosmetic splay, bubbles, and loss of transparent optical quality. We dry raw material in desiccant hopper dryers at 150\u00b0C (302\u00b0F) for 4 hours to keep moisture levels below 0.02% before molding, protecting dynamic mechanical tensile bonds.<\/p>\n<\/div>\n<\/div>\n<\/section>\n

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Key Application Fields for PEI-SABIC Ultem 9085<\/h2>\n
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  • Aviation Cabin Interiors & Systems:<\/strong> High-safety passenger service trays, window trim bezels, personal oxygen covers, commercial ventilation duct fittings, and aerospace wire brackets.<\/li>\n
  • Rail & Public Transit Infrastructure:<\/strong> Railway passenger cabin wall paneling, ceiling panels, interior seat trim brackets, high-voltage electrical terminal connectors, and heavy-duty switches.<\/li>\n
  • EV Batteries & Electronics:<\/strong> EV lithium-ion battery brackets, cell holders, electrical fuse box covers, high-voltage busbar isolators, and heavy-duty coil bobbins.<\/li>\n<\/ul>\n<\/section>\n<\/div>","protected":false},"excerpt":{"rendered":"

    Ultem 9085 Flame-Smoke-Toxicity (FST) & Structural Profile SABIC\u2122 ULTEM\u2122 Resin 9085 is an unreinforced amorphous Polyetherimide (PEI) blend, certified to deliver outstanding impact strength, low smoke density, and minimal toxic gas emission under international aviation standards: Aviation Safety Metric Ultem 9085 Rating\/Value Cabin Engineering Compliance FAA FAR Flammability FAR 25.853 Compliance (60-sec vertical burn) Meets […]<\/p>\n","protected":false},"featured_media":2497,"template":"","meta":[],"class_list":["post-2496","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\/2496","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\/2497"}],"wp:attachment":[{"href":"https:\/\/www.jcinjectionmolding.com\/vi\/wp-json\/wp\/v2\/media?parent=2496"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}