PET is Widely Used For:

  • Food processing machinery components
  • Valve components
  • Manifolds
  • Filler pistons
  • Bearings and bushings
  • Wear pads
  • Packaging and machinery parts
  • Wheels and rollers

Performance Characteristics:

  • Strong and stiff
  • Excellent chemical resistance
  • Low moisture absorption
  • Low thermal expansion
  • Excellent wear characteristics, even in wet environments
  • Stain resistant

Common Brands:

  • Sustadur PET


A strong, dimensionally stable plastic with outstanding chemical resistance and wear properties

PET (polyethylene terephthalate, semicrystalline) is a strong, stiff engineering plastic with excellent machining characteristics, chemical resistance, and bearing and wear properties. 

PET is often used for food processing machinery applications where low moisture absorption, low thermal expansion, resistance to staining, or resistance to cleaning chemicals is required.

FDA compliant grades of PET are available.

Tech Tip– PET is resistant to many CIP (clean in place) wash-down solutions.

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SHEET Dimensions:
12 in x 12 in – 24 in x 48 in
0.250 in – 3 in
ROD Outside Diameter:
0.250 in – 6 in
COLOR Natural

Length, width, thickness, and diameter tolerances vary by size, by manufacturer, brand, and grade. Custom sizes available upon request.

PET Properties

Typical properties of PET
Tensile strength psi D638 11,500
Flexural modulus psi D790 400,000
Izod impact (notched) ft-lbs/in of notch D256 0.7
Heat deflection temperature @ 264 psi °F D648 175
Maximum continuous service temperature in air °F   230
Water absorption (immersion 24 hours) % D570 0.10
Coefficient of linear thermal expansion in/in/°Fx10-5 D696 3.9

Values may vary according to brand name. Please ask your Curbell Plastics representative for more specific information about an individual brand.

Need more information about this material? Use our interactive plastic properties table


Dimensional Stability of PET Plastic vs Copolymer Acetal and Cast Nylon 6