PP (polypropylene) is a leading crystalline general purpose plastic. With the specific gravity of 0.9, it is lightest among all general purpose plastics. Moreover, due to its excellent chemical resistance, hydrolysis resistance and electrical properties, it is used in wide range of fields as a plastic with large range of applications. It is frequently used as a replacement material for PVC (poly-vinyl chloride), which has recently come under scanner due to dioxin generation. 
It does not contain any of the 6 substances restricted by RoHS. (Lead, cadmium, mercury, hexavalent chrome, PBB, PBDE). 
・Continuous use temperature　115℃ 
・Combustibleness UL94 V-2