SAFEGRIP USA 1/2 Gallon Slippery Patio , Kitchen and Pool Deck - Anti Slip - Non Skid Tile Treatment For RESIDENTIAL: Kitchen, Hallway, Bathroom, Entry Way, Living Room , Patio etc... For COMMERCIAL: Hallways, Restrooms, Entry Ways, Reception Area etc... Pool Deck, Locker Room, Spa Easy and safe to apply , will cover 400 sq. ft. and lasts for years. Proven to increase slip resistance nearly 100% .