CRESTER is a brand name for Polybutylene terephthalate (PBT) compounds. PBT is a semi-crystalline engineering thermoplastic and a type of polyester.
Chemical structure and polymerization
PBT is produced by polycondensation of terephthalic acid with 1,4-butanediol using special catalysts.
CRESTER is characterized by high stiffness and strength, very good dimensional stability, low water absorption and good chemical resistance.
CRESTER can provide reliability, durability and a cost advantage in electrical and electronic applications, automotive lighting bezels
High stiffness and strength
High heat resistance
Good dimensional stability
Good chemical resistance
Excellent dielectric and electrical insulation properties