For Pro's and DIY'ers, Klean-Strip is the leading brand of solvents, thinners, removers, and cleaners that are dependable for reliable results. Klean-Strip Paint Thinner effectively thins oil-based paint, stain and varnish. It can also be used to clean brushes and equipment immediately after use. Carefully read all directions, notes and cautions prior to use. Do not apply to floors or any other large surface areas. Keep out of reach of children. Not for sale in California.