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Hydex® / PBT (Polybutylene terephthlate)

PBT (polybutylene terephthlate) is a polyester that has good chemical and impact resistance, a low coefficient of friction, moderate temperature resistance and outstanding machinability. It does not crack or craze in chlorine nor does it chip or contaminate food products. PBT is approved for direct food contact. Typical applications include food piston pumps, valves and valve bodies, timing screws, gears, cams, bushings and bearings, wear strips, fuel pump components, and fuel system connectors and rotors.

Key Properties
  • No center line porosity
  • Good chemical resistance
  • Low coefficient of friction
  • Good impact strength
  • FDA, USDA and 3A Dairy compliant
Standard Shapes and Forms

Sheet: .250” – 4” thick

Rod: .250” – 6” diameter

The range of sizes and shapes are grade specific. Please contact us for more information.

Grades and Colors

PBT, Lubricated

Lubricated PBT is an enhanced version with improved wear, PV range and lubircity over unfilled PBT.