Polypropylene is an economical material that offers a combination
of outstanding physical, chemical, mechanical, thermal and electrical
properties not found in any other thermoplastic. Compared to low or
high density polyethylene, it has a lower impact strength, but superior
working temperature and tensile strength.
Polypropylene possesses excellent resistance to organic solvents,
degreasing agents and electrolytic attack. It has a lower impact
strength, but it's working temperatures and tensile strength are
superior to low or high density polyethylene. It is light in weight,
resistant to staining, and has a low moisture absorption rate.
This is a tough, heat-resistant, semi-rigid material, ideal for the
transfer of hot liquids or gases. It is recommended for vacuum systems
and where higher heats and pressures are encountered. It has excellent
resistance to acids and alkalis, but poor aromatic, aliphatic and
chlorinated solvent resistance.