Ultra-pure deicer, anti-freeze, and freeze conditioning agent. Fast-acting formulation immediately starts melting ice and remains active up to 24 hours. Perfect for driveways, walkways, ramps, decks, stairs, entryways, roadways, and other surfaces where snow and ice present a problem. 1 gallon treats up to 200 square feet. Up to 10X less harmful to vegetation compared to rock salt and brine solutions. Non-flammable and non-hazardous to ship. Will not track onto carpets and floors.