Polypropylene (PP)

PP is made from polymerisedpropylene. PP is normally delivered with an isotacticconfiguration that gives a material of high crystallinity(70-80).

PP is one of the lightest thermoplastics on the marked. It has a high stiffness, good strength even in relatively high temperatures , abrasion resistant, good elastic properties and a hard glossy surface. In low temperatures PP gets brittle (< 0°c). The electrical properties are very good. The PP material has a white / colourlesscolour.

PP are used for tubes, fittings, packing materials, auto parts etc. The material is often used for hinges as it can flexed millions of times before breaking.