PREMIUM STONE SEALER: Protect, restore, and extend the life of your home with Rainguard Water Sealers Stone Sealer! This premium-grade water sealer for stone is safe to use indoors or outdoors. It dries to an invisible stain resistant finish that won't yellow or alter surface texture or appearance. LONG LASTING PROTECTION: Engineered with Micro-Lok! This proprietary ingredient ensures sealer absorption and creates a long-lasting filmless hydrophobic barrier against weathering, salt, dirt, freezing temperatures, UV light, wind-driven rain, and other damaging elements. Rainguard Stone Sealer is the ideal weatherproof sealant for all vertical and horizontal natural stone surfaces including, stone floors, chimneys, walkways, walls, paving stone patios, and stone ovens. CONCENTRATED FORMULATION: Cost-effective, concentrated sealing solutions! Rainguard Water Sealers Stone Sealer Concentrate offers the best value and simple mixing. Pour the quart of concentrate into a 5-gallon pail and add clean water to the 2-gallon mark. Mix lightly to disperse the material. Two gallons of this impregnating stone waterproofer coats, seals, and protects up to 250 square feet. Try Rainguard Water Sealers' ready-to-use formulations for ease and convenience. EASY APPLICATION: Seamlessly seal stone surfaces! Prior to applying Rainguard Stone Sealer, protect anything you don't want to be sealed by moving or covering with a tarp. Prep surface by gently brushing out any stains with a soft bristle brush or rag with Cleaner/Prep (sold separately) for best results. Using a hand-pump garden sprayer, apply at least two heavy coats of sealer to the surface, allowing it to dry to the touch between coats. Clean up any overspray with a clean damp cloth. RAIN GUARD: Where innovation meets sustainability! Since 1969, Rainguard Water Sealers has been manufacturing architectural and industrial coatings designed to “wrap” the exterior of buildings and structures. Rainguard now brings this same technology to consumers in our ready-to-use and concentrated DIY formulations, providing a variety of high-performance sealers for your home. Eco-friendly and non-toxic, all our waterproofing solutions are safe to use around people, pets, and plants.