Hostaform® acetal copolymer grade AM90S Plus is a standard melt viscosity acetal copolymer based material containing an antimicrobial ingredient. AM90S Plus reaches maximum efficacy more rapidly than standard AM90S. Hostaform® AM90SPlus provides the same physical and mechanical performance of standard Hostaform and Celcon acetal copolymer grades plus the added benefit of inhibiting bacterial growth.