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Performance Characteristics
Typical Applications
Typical Properties
Polypropylene is a low cost, chemical resistant plastic with excellent aesthetic qualities. Polypropylene is easy to weld using thermoplastic welding equipment and is often fabricated into water and chemical tanks.

Polypropylene is available in both homopolymer and copolymer grades.

  • Homopolymer Polypropylene

    Homopolymer polypropylene is stronger and stiffer than copolymer.
  • Copolymer Polypropylene

    Copolymer polypropylene is a bit softer, but it is tougher and more durable than homopolymer polypropylene. Copolymer polypropylene tends to have better stress crack resistance and low temperature toughness than homopolymer polypropylene.

Polypropylene Standard Sizes

SHEET 48"x96" (0.062"-4.0" thick)
48"x120" (0.062"-4.0" thick)
60"x120" (0.125"-1.0" thick)
96"x120" (1.5"-4.0" thick)
96"x240" (1.5"-4.0" thick)
ROD diameter 0.25"-10.0"

  • Length, width, thickness, and diameter tolerances vary by size and by manufacturer
  • Custom sizes and colors available upon request
  • Many of our plastic materials are available as films with thicknesses of 0.029" or less

Polypropylene Grades

  • FDA compliant grades

NOTE: Several grades of polypropylene are available. For additional information on polypropylene plastic materials, contact your local Curbell Plastics representative or call Curbell at 1-888-287-2355.
Performance Characteristics
  • Easy to weld using thermoplastic welding equipment
  • Low moisture absorption
  • Good chemical resistance
  • Low cost
  • Extremely tough (copolymer)
  • Excellent aesthetic properties
  • Easy to fabricate
Typical Applications
  • Chemical tanks
  • Plating tanks
  • Fire truck water tanks (copolymer polypropylene)
  • Cutting boards for food preparation
  • Semiconductor equipment cabinets and work surfaces
Typical Properties

Tensile strength psi D-638 5,400 3,800
Flexural modulus psi D-790 225,000 215,000
Izod impact (notched) ft-lbs/in of notch D-256 1.2 12.5
Heat deflection temperature @ 264 psi °F D-648 210 190
Maximum continuous service temperature in air °F - -
Water absorption (immersion 24 hours) % D-570 slight slight
Coefficient of linear thermal expansion in/in/°Fx10-5 D-696 - -
Values may vary according to brand name. Please ask your Curbell Plastics representative for more specific information about an individual brand.
Contact Curbell Plastics at 1-888-287-2355 for more specific information about polypropylene plastic or complete our request for quote online form.