Slip Zero 1 - Non Slip for Polished Tile and Stone - Gallon Will make 400 square feet of highly polished tile or flooring non slip. Just follow the step by step instructions. Is premixed to save the shiny appearance of marble, granite or porcelain This product is long lasting and is not a coating. The shipment will include neutralizer at no additional charge. Neutralizer is necessary to get your timing exact and for safe disposal. This product has been used for over 20 years in the non slip floor industry.