This professional strength heavy-duty floor stripper is designed for the removal of tough to strip finishes and sealers. Fast acting, it goes on quickly with a cotton mop or scrubbing machine and emulsifies most finishes on contact, reducing normal soak times and removing multiple layers of finish with fewer passes. The ammonia-free, high-alkaline formula is concentrated so one gallon makes nine gallons of floor stripping solution. Not for use on marble, natural stone or wood floors. Recommended dilution: Normal (1:5); Heavy (1:2).