Klean-Strip Denatured Alcohol cleans glass and is used as a fuel for marine stoves. Not intended for sale or use as a thinner. Our Klean-Strip solvents and thinners are mixed into wet paint, varnish, stain and other finishes to weaken consistency and thin them out. They"re also great for clean up. Klean-Strip products are like elbow grease in a can. They"re formulated for professional use to strip years of old paint, clean up heavy-duty spills, and give homes a second chance.