Multi Surface Masonry & Wood Waterproofer 5 Gal for the Homeowner 7 Year Money Back Guarantee • Does not alter surface appearance • Protects concrete against deicing salts and water infiltration • Easy to use - same day, one coat application using an airless or hand pump sprayer • Apply in cold weather down to 35F ( 1.7C) • 100% Eco-Friendly: Low VOC, low odor, safe to use