Back To Nature US01 1 Gal Ultra-Strip Ultimate paint remover removes 1-4 layers in 15 Min to 4 Hours. For tougher jobs, a heavier application will remove paint on the first application. Environmentally safe, biodegradable, non-flammable. Contains no methylene chloride or caustic. Odor free and water clean-up. Brush, roll or spray-on.