Materials

PP (Polypropylene)

Polypropylene is a widely used, semi-crystalline material. It has been extensively compounded to provide a wide range of properties at a wide range of costs. In general, polypropylene is a low temperature material with excellent chemical resistance — it has no known solvent at 73° F. Polypropylene is difficult to mold to extremely close tolerances.

AdellBorealisCelstranCertene

Typical Properties

Tensile Strength4,500-18,500 psi
Flexural Modulus210,000-1,500,000 psi
Impact Strength1.4-5.5 ft-lb/in notched izod
Max Temperature150°-300° F
Chemical ResistanceExcellent

Applications

  • Packaging
  • Industrial components for fluid processing
  • Household goods
  • Automotive and electrical hardware

Advantages

  • + Excellent moisture resistance
  • + Food grades available
  • + Mold-in hinge possible
  • + Good impact strength

Disadvantages

  • − Degraded by UV
  • − Flammable (retarded grades available)
  • − Attacked by chlorinated solvents
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