Polypropylene (PP) belongs to the Polypropylene is a thermoplastic from the polyolefin group. PP is a semi-rigid, translucent polymer with good toughness and weather resistance properties. It has low water absorption and is easily moulded as low cost. PP – Homopolymer (PP-H) is produced by a continuous chain of polypropylene units which results in a high stiffness material. Mostly popular in grey colors only.