Gallon, multi-strip is a unique environmentally safe paint remover designed to remove up to 15 layers of paint & varnish, it is biodegradable, non-flammable, odor free & contains no methylene chloride or caustic, easy water clean-up, removes most paints & varnishes, oil or water- based, also can remove more difficult coatings such a 2 part epoxy & urethanes, multi-strip works on interior & exterior surfaces, requires no neutralization, neutral ph.