Safe on any washable surface, Bufferall is a mild acid cleaner for use as a neutralizer/salt winter rinse, carpet spotting from tannin-based stains (coffee and tea) and post spray for browning and yellowing of carpets. It removes mineral deposits and soap film/lime deposits from bathroom surface. Use Bufferall on resilient floors before refinishing to neutralize and remove residual alkalies that remain on floors after stripping. Always rinse Bufferall with clear water.