... Of Time, 3.Quality assurance, 4.Price Actual Bene Glass fiber ACETAL Sheet is a high strength, low friction ... also tends to have less porosity than homopolymer acetal.Glass Filled and Enhanced Grade Acetal(POM)Acetal is available ... Homopolymer acetal-Copolymer acetal-FDA compliant-Enhanced bearing and wear=Glass-filled=Colors include:-Natural (white)-Black-ColorsPerformance Characteristics-Strong ...