The No. GS02 Grout Sealer is a VOC (Volatile Organic Compounds) compliant, solvent based formula designed for deep penetration on both polished and porous stone, masonry, grout, and concrete. It protects against oil and water based stains while still allowing the surface to breathe. The inverted "anyway" valve spray tip allows for application to floors, walls and countertop surfaces from a standing position. Features: Can be applied immediately after grouting Apply to cured or damp uncured grout Easy spray-on application Will not change the surface appearance Non-yellowing No hard-to-remove residue Provides UV Protection Fast drying Cures in 24 hours Use indoors or outdoors Expected Wear: 20 years Coverage: Linear Feet: 800-1000 Square Feet: 50-150 Available Sizes: 15 oz. inverted 'anyway' valve spray tip aerosol can.