Paint Ripper by Kate O'Brien Lead Detective Non-toxic chemical removes paint down to bare wood. Rip-Strip paint remover forms a film that adheres to the existing paint while it reacts chemically. The water-soluble product contains a heat catalyst that quickens the dissolving process but retards evaporation. It can be used on exteriors or interiors, and works on various painted surfaces, including wood, masonry, stone, plaster, metal, and cast iron. The product has a mild odor but has reportedly removed up to 35 layers of paint in one application. The job usually takes one to three days, but can take longer in really tough cases. For more information contact Diedrich Chemicals, Restoration Technologies, Inc., 7373 S. 6th St., Oak Creek, WI 53154; 800/323-3565 and