Ultradur® is BASF’s brand name for its line of partially crystalline, thermoplastic, saturated polyesters derived from polybutylene terephthalate (PBT). They are employed in applications demanding a high performance level such as load bearing parts in different industrial sectors.
Ultradur® is outstanding for its high rigidity and strength, very good dimensional stability, low water absorption and high resistance to many chemicals with exceptional resistance to weathering and excellent heat aging behavior.