Shop for Homopolymer Acetal rods. Homopolymer acetal (Delrin®) has superior room temperature strength, stiffness, and toughness. Easy to machine, acetal makes an outstanding choice for applications that require complex, tight tolerances. 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.