Polypropylene Homopolymer (PPH) is the more widely utilized than co-polymer and also offers a higher strength to weight ratio and is stiffer and stronger. This combined with good chemical resistance and weldability allows this material to be used in many corrosion resistant structures.
Compared to low or high density polyethylene, it has a lower impact strength, but superior working temperature and tensile strength. Noted for its excellent chemical resistance in corrosive environments, polypropylene provides excellent resistance to organic solvents, degreasing agents and electrolytic attack. It is light in weight, resistant to staining, and has a low moisture absorption rate.