Shop for Copolymer Acetal sheets. Copolymer acetal sheet has excellent performance in continuous high heat and hot water environments. Copolymer acetal also tends to have less porosity than homopolymer acetal. Custom cuts and cut-to-size pieces. Have machined into fabricated parts. Acetal comes in several colors. Stocked materials typically ship in 2-5 business days. Can’t find what you need? Get a quote.