{"product_id":"polymaker-pc-pbt-blend-filament-3d-printer-filament-1kg-1-75mm","title":"Polymaker PC-PBT Blend Filament 3D Printer Filament 1KG 1.75mm","description":"\u003ch2\u003ePolymaker PC-PBT Filament — 1.75mm, 1kg, Tg 140°C, Tough from -30°C to 107°C HDT, Chemical Resistant PC\/PBT Blend for Automotive \u0026amp; Industrial Parts\u003c\/h2\u003e\n\n\u003cp\u003e\n  Standard polycarbonate is exceptional at handling heat. What it's\n  not known for is staying tough when temperatures drop below zero.\n  \u003cstrong\u003ePolymaker PC-PBT\u003c\/strong\u003e is the answer to that gap —\n  a precision blend of \u003cstrong\u003epolycarbonate (PC) and polybutylene\n  terephthalate (PBT)\u003c\/strong\u003e engineered specifically for parts\n  that need to survive both ends of the thermal spectrum:\n  \u003cstrong\u003eheat deflection at 107°C on the hot end\u003c\/strong\u003e and\n  \u003cstrong\u003emaintained toughness down to -30°C on the cold end\u003c\/strong\u003e,\n  combined with robust chemical resistance to fuels, oils, lubricants,\n  and detergents. This is the material behind automotive exterior\n  components, outdoor electronics housings, and industrial parts that\n  live in environments where temperature swings and chemical exposure\n  are daily realities — not edge cases.\n\u003c\/p\u003e\n\n\u003cp\u003e\n  ⚠️ \u003cstrong\u003eHeated chamber required: 100–115°C.\u003c\/strong\u003e\n  PC-PBT is a true industrial PC blend — it cannot be printed\n  successfully on an open-frame printer without a heated enclosure.\n  Verify your printer can maintain chamber temperature before\n  ordering.\u003cbr\u003e\n  ⚠️ \u003cstrong\u003eNo part cooling fan.\u003c\/strong\u003e Zero fan at all times —\n  forced airflow causes delamination and warping in PC-based blends.\u003cbr\u003e\n  ⚠️ \u003cstrong\u003eAll-metal hotend required\u003c\/strong\u003e — 260–280°C exceeds\n  the safe range of PTFE-lined hotends.\u003cbr\u003e\n  ⚠️ \u003cstrong\u003eBed adhesive required.\u003c\/strong\u003e PVA glue stick or\n  Magigoo PC on any bed surface — adhesive is not optional\n  with this material.\u003cbr\u003e\n  ✅ \u003cstrong\u003eDry only if moisture-absorbed:\u003c\/strong\u003e 75°C for 6h.\n  Unlike some hygroscopic engineering materials, PC-PBT only needs\n  drying if it has been exposed to humidity — not as a routine\n  pre-print step on fresh sealed spools.\u003cbr\u003e\n  ✅ \u003cstrong\u003eAnneal after printing for best results:\u003c\/strong\u003e\n  90°C for 2h releases residual internal stress and maximizes\n  dimensional stability and toughness.\n\u003c\/p\u003e\n\n\u003ch3\u003eWhy PC-PBT — The Specific Problem This Blend Solves\u003c\/h3\u003e\n\u003cp\u003e\n  The PC\/PBT combination is not a marketing blend — it's a\n  materials engineering decision made by automotive OEMs decades\n  before desktop 3D printing existed. Pure PC is rigid and heat\n  resistant but becomes brittle in cold environments, particularly\n  under impact. Pure PBT is chemically resistant and tough at low\n  temperatures but has a lower heat deflection point. Blending\n  the two at the right ratio produces a material that inherits\n  the thermal ceiling of PC and the cold-weather toughness and\n  chemical resistance of PBT — without sacrificing either property\n  significantly. The result is a filament that holds its geometry\n  at automotive operating temperatures, doesn't crack when a\n  door panel is slammed at -20°C in a Canadian winter, and\n  resists the fuel splashes, lubricants, and cleaning agents\n  that industrial and automotive parts see throughout their\n  service life.\n\u003c\/p\u003e\n\n\u003ch3\u003eChemical Resistance — What PC-PBT Can Handle\u003c\/h3\u003e\n\u003cp\u003e\n  The PBT component of the blend gives PC-PBT meaningful chemical\n  resistance that standard PC and most engineering-grade filaments\n  cannot match. Parts printed in PC-PBT maintain structural\n  integrity with sustained exposure to:\n\u003c\/p\u003e\n\n\u003ctable\u003e\n  \u003cthead style=\"background-color:#000000;color:#ffffff;\"\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eChemical category\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e\u003cstrong\u003eExamples\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e\u003cstrong\u003ePC-PBT behavior\u003c\/strong\u003e\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eAutomotive fuels\u003c\/td\u003e\n      \u003ctd\u003eGasoline, diesel\u003c\/td\u003e\n      \u003ctd\u003eGood resistance — no significant degradation\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eOils and lubricants\u003c\/td\u003e\n      \u003ctd\u003eEngine oil, hydraulic fluid, cutting oil\u003c\/td\u003e\n      \u003ctd\u003eGood resistance — no swelling or weakening\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eCleaning and detergent agents\u003c\/td\u003e\n      \u003ctd\u003eIndustrial degreasers, detergent solutions\u003c\/td\u003e\n      \u003ctd\u003eGood resistance — maintains surface integrity\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eAqueous solutions\u003c\/td\u003e\n      \u003ctd\u003eCoolants, saltwater, weak acids\u003c\/td\u003e\n      \u003ctd\u003eGood resistance at standard concentrations\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eThermal Performance — The Full Spectrum\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003cthead style=\"background-color:#000000;color:#ffffff;\"\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eProperty\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e\u003cstrong\u003eValue\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e\u003cstrong\u003eWhat it means in practice\u003c\/strong\u003e\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eGlass Transition Temp (Tg)\u003c\/td\u003e\n      \u003ctd\u003e140°C\u003c\/td\u003e\n      \u003ctd\u003ePart remains structurally stable above boiling water temperature\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eVicat Softening Temp\u003c\/td\u003e\n      \u003ctd\u003e139°C\u003c\/td\u003e\n      \u003ctd\u003eConsistent with Tg — predictable thermal behavior\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eHeat Deflection Temp (HDT)\u003c\/td\u003e\n      \u003ctd\u003e107°C\u003c\/td\u003e\n      \u003ctd\u003eSurvives sustained thermal load well above automotive interior temps\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eLow-temp toughness\u003c\/td\u003e\n      \u003ctd\u003eDown to -20°C \/ -30°C\u003c\/td\u003e\n      \u003ctd\u003eMaintains impact resistance in freezing conditions where standard PC embrittles\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eMechanical Properties\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eYoung's Modulus\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1986 ± 85 MPa\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTensile Strength\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e41.8 ± 0.9 MPa\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBending Strength\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e64.4 ± 0.3 MPa\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCharpy Impact Strength\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e21.4 ± 3 kJ\/m²\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003ePrint Settings\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFilament diameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.75mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHotend temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e260–280°C (all-metal hotend required)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBed temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e100–115°C\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eChamber temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e100–115°C ⚠️ required\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePrint speed\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e30–50 mm\/s\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart cooling fan\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eOFF — zero fan at all times\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBed preparation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePVA glue stick or Magigoo PC — required on any surface\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDirect drive retraction\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1mm \/ 20mm\/s\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBowden retraction\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3mm \/ 40mm\/s\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDrying (if needed)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e75°C for 6h — only if moisture-absorbed\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAnnealing (recommended)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e90°C for 2h after printing\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRecommended support\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePolyDissolve S2 (dual extrusion)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSpool weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1kg\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSpool type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRecycled cardboard — eco-friendly packaging\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSpool inner hole diameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e55 ± 1mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSpool outer diameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e200 ± 1mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSpool width\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e65.6 ± 2mm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWho Is This For?\u003c\/h3\u003e\n\u003cp\u003e\n  Polymaker PC-PBT is the correct material for three situations\n  that no other commodity filament handles simultaneously:\n  parts that face \u003cstrong\u003eheat and cold in the same service life\u003c\/strong\u003e\n  (automotive exterior — from a desert highway to a winter parking lot),\n  parts that need \u003cstrong\u003echemical resistance alongside structural\n  integrity\u003c\/strong\u003e (industrial housings near lubricants, fuels,\n  or cleaning agents), and parts where\n  \u003cstrong\u003edimensional stability under thermal cycling\u003c\/strong\u003e\n  is a functional requirement rather than a preference. Specific\n  applications where PC-PBT is the default choice in injection\n  molding — and now in 3D printing: automotive bumpers, roof rail\n  brackets, door handles, outdoor enclosures for electronics,\n  VR\/AR headset housings, battery cases, and any industrial\n  part that alternates between cold storage and hot operating\n  environments. If your printer can hold a 100–115°C chamber,\n  PC-PBT opens a performance envelope that no filament below\n  it in the material stack can reach.\n\u003c\/p\u003e\n\n\u003ch3\u003eTechnical Documents\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n    \u003ca href=\"https:\/\/polymaker.com\/product\/polymaker-pc-pbt\/\" target=\"_blank\" rel=\"noopener\"\u003e\n      Polymaker PC-PBT — Official Product Page (TDS, SDS, Print Profiles)\n    \u003c\/a\u003e\n  \u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\n  Browse all polycarbonate filaments at\n  \u003ca href=\"\/collections\/polycarbonate-pc-filament\"\u003ePolycarbonate PC Filament\u003c\/a\u003e,\n  or explore the full engineering material catalog at\n  \u003ca href=\"\/collections\/3d-printer-filament\"\u003e3D Printer Filament\u003c\/a\u003e.\n\u003c\/p\u003e","brand":"West3D 3D Printing Supplies","offers":[{"title":"Natural","offer_id":52735670944038,"sku":"POL1580","price":53.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1004\/1986\/2822\/files\/polymaker-pc-pbt-blend-filament-3d-printer-filament-1kg-175mm-west3d-3d-printing-supplies-polymaker-841176.webp?v=1773259449","url":"https:\/\/supplies3d.shop\/products\/polymaker-pc-pbt-blend-filament-3d-printer-filament-1kg-1-75mm","provider":"SUPPLIES3D","version":"1.0","type":"link"}