RainGuard Pro Micro-Seal Silane / Siloxane Water Repellent is an invisible clear penetrating water repellent that is non-yellowing, low odor, zero VOC, and non-toxic. It is formulated to not be affected by weathering, salt, dirt, freezing temperatures, UV light, and wind-driven rain, among many other damaging elements. It dries down to a clear, invisible finish that does not change the surface texture or color.Ideal for use on uncoated/unpainted, vertical/horizontal, interior/exterior surfaces such as: concrete, brick, pavers, wood, porous natural and artificial stone, masonry, unglazed/unpainted porous tile, and color integrated or unpainted stucco.Features Deep penetrating 100% breathable water-repellent for vertical and horizontal, interior and exterior, concrete and masonry surfaces Stain resistant to oil, gas, and anti-freeze for outstanding protection Low odor and zero VOC formula is non-flammable and the safer choice for people and the environment Does not alter surface appearance - leaves no surface film, no sheen, and will not yellow Protects surface for up to 10 years Coverage125 - 150 square feet per gallon6 oz concentrate, makes 1 gallon32 oz / 1 Quart concentrate, makes 5 gallons1 Gallon concentrate, makes 10 gallons