Endura® PBT-80 is a concentrate which contains 80% antimony oxide dispersed in PBT. As a concentrate, Endura® PBT-80 simplifies the handling and application of antimony oxide and makes it easier for users to comply with the current OSHA permissible exposure limit of 0.5 mg/m3 (as antimony) based on an 8-hour time-weighted average.

Endura® PBT-80 must be used in conjunction with a halogenated organic compound in order to obtain flame retardancy.

Applications
Endura® PBT-80 is designed for flame retardant polyester applications in particular, as well as a wide range of other flame retardant thermoplastic applications which can tolerate small amounts (usually less than 2%) of a PBT Resin.