Polypropylene: PPC & PPH | Plastic Stockist

Polypropylene (PP) is a plastic polymer, tough and lightweight with low water absorption and often chosen for its resistance to corrosion and excellent chemical resistance. Polypropylene offers an excellent combination of mechanical, physical, thermal and electrical properties compared to other plastics. This low cost plastic is often compared to high density polyethylene (HDPE), although it has lower impact strength, Polypropylene has superior tensile strength and working temperature. Polypropylene provides outstanding resistance to organic solvents, degreasing agents and electrolytic attack. This material is resilience against most forms of physical damage, including impact and freezing.

Polypropylene is available in two main grades, Polypropylene homopolymer and Polypropylene copolymer. Both have very similar properties but appearance and performance differences are distinctive between the two types. Polypropylene homopolymer or PPH for short is stronger and stiffer than copolymer and more widely used. With the combination of excellent chemical resistance and the ability to be joined and welded by heat fusion makes this an ideal plastic for chemical tanks and structures in corrosive environments.

Polypropylene copolymer and commonly abbreviated as PPC is tougher and more durable than PPH . Although polypropylene copolymer is softer, it offers better impact strength and tends to have better stress resistance and toughness even at low temperatures compared to Polypropylene homopolymer.

Common uses for Polypropylene (PPC & PPH)

Polypropylene is used in many different applications from industrial, consumer goods to display applications. Polypropylene is used extensively in manufacturing chemical tanks, structural tank, liners and covers. Other common applications include, industrial battery covers, pump components and impellers. Polypropylene sheeting is also used for hygienic cladding applications. FDA Food approved makes this an ideal plastic material for food processing applications and components. Polypropylene is reasonably economical, and can be made translucent when uncolored; the natural finish is a milky white finish. Polypropylene is difficult to bond with adhesives due to its chemical resistant properties and welding and mechanical fixing is recommended.