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 .

Applications: Packaging, industrial components for fluid processing, household goods, automotive and electrical hardware.

Advantage

 

Excellent moisture resistance
Food grades available
Mold–in hinge possible
Good impact strength

Disadvantage

 

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

Tensile StrengthFlexural ModulusImpact StrengthMax Temp.Chemical Resistance
4,500-18,500 psi210,000-1,500,000 psi1.4-5.5 ft-lb/in notched izod150°-300° FGreat