General facts

Polypropylene copolymer

Shortening: PP

Color: White, colorless

Coloring options: Unlimited

Common uses: Bottles, casings for kitchen appliances, knobs, door handles, medicine and cosmetics packaging, etc.


  • Relatively high fatigue strength.
  • Stiffer than PEHD.
  • Retains its mechanical properties better at high temperatures than PEHD.
  • Excellent dielectric properties.
  • Low density (floating).
  • Chemical resistance similar to polyethylene, but not the same tendency to stress cracking due to. surrounding medium.
  • Reinforced grades have a stiffness similar to unfilled nylon but at a lower price.
  • Mechanical and electrical properties are also maintained in water.
  • Non-toxic grades can be steam sterilized.


  • Becomes brittle below -20 ° C.
  • Degraded by UV radiation if it is not stabilized.
  • Attacked by oxidizing acids.
  • Thermal stability is reduced upon contact with copper.
  • PP-C material is easier to glue together with other materials, such as wood and aluminum than with itself.

Specific properties

By modifying PP, a material that can withstand temperatures below the freezing point of water (PP-Copolymer) can be obtained.

Polypropylene Copolymer referred to as PP-C, is a bit softer but with better impact strength, toughness, and durability than PP-H. PP-C tends to have better stress crack resistance and low-temperature toughness overall at the expense of smaller reductions in other properties.