Flowfresh SL is a self-smoothing antimicrobial polyurethane resin, incorporating Polygiene for an ultra hygienic floor system. Hygienic - Contains polygiene- an antimicrobial additive that kills up to 99.9% bacteria. Chemical Resistant -Available in a high chemical resistance grade for superior durability. Abrasion Resistant -Holds its own against a variety of foot and trolley traffic. UV Stable -UV light stable grade is available.Prevents from yellowing effect.