Gallon, white, water base, maximum stretch, high strength elastomeric roof coating, 25% rubber, 75% acrylic, impervious to water when applied in a uniform & seamless fashion with adequate mileage, non-toxic, low odor, voc free, use for waterproofing roofs & walls, used on metal, tar & gravel, built up, rolled roofing, & many other surfaces, can be used on edpm, concrete & top roofs if super primer is applied first, may be used as a roof system with super elasto-barrier over old tar flat roofs, tar & gravel, built-up, rolled roofing, edpm, concrete & top, coverage 1 gallon per 100 sqft per coat.