Shop for Copolymer Polypropylene sheets. Copolymer polypropylene sheet is a bit softer, but it is tougher and more durable than homopolymer polypropylene. It also tends to have better stress crack resistance and low temperature toughness. Custom cuts and cut-to-size pieces. Have machined into fabricated parts. Polypropylene comes in many colors and sizes. Stocked materials typically ship in 2-5 business days. Can’t find what you need? Get a quote.