Proxi Concentrate Multisurface Cleaner removes stains, hard-water buildup and soap scum and eliminates odor. The active ingredient in this versatile, concentrated formula is safer on surfaces than aggressive acids or bleaches. Mix with cold water. Dilution ration for general cleaning is 4 oz. per gallon of water for spray and wipe-light moping. For auto scrubbers, dilute 1 oz. per gallon. Use 8 oz. per gallon for restroom and shower room surfaces and then let stand for 5 minutes and rinse. For grout and concrete floors, use 10 oz. per gallon and also let stand for 5 minutes. To clean effectively, agitate with brush. Pick up soiled solution with mop or wet vac and rinse with clear water. Wearing rubber gloves or goggles are recommended during use to prevent skin contact. Industrial cleaner is hydrogen peroxide-based.