Celanex® thermoplastic polyester (PBT) is a semicrystalline structure based on polybutylene terephthalate that provides high strength, rigidity and toughness, low creep even at high temperatures and resistance to a wide range of chemicals, solvents, oils and greases.
Celanex PBT is especially suited as a sliding partner for Hostaform®/Celcon® POM. It features excellent dimensional stability, low moisture absorption and powerful insulation resistance.
Product Properties * Very hard, rigid and strong * Good creep resistance * High heat-distortion temperature, especially for glass fiber-reinforced grades * Service temperature to 140°C * Very good low-friction and wear-resistant properties * High dimensional stability (low thermal expansion coefficient, low water absorption) * Good electrical properties * Good chemical resistance * No environmental stress cracking * Good weathering resistance * Rapid crystallization and fast cycle time * Paintable * Flame-retardant grades available (UL 94 V-0, in some cases 5VA)
Depending on market requirements, the Celanex PBT flame-retardant system is low in migration and halogen-free.
Grades * Basic * Glass fiber and glass sphere reinforced * Glass fiber reinforced with very high surface gloss * Glass fiber/mineral reinforced * Flame retardant * UV stabilized * HR grades * Medical technology (MT®) * Special colors for laser marking * MetaLX™ metal effects