While typical wax strippers remove floor finishfrom some waxed floors, they are not capableof removing the old burnished in wax found in grout joints. Where they fail, Pro Strip succeeds.Designed with special wetting agents, Pro Strip is able to penetrate to the bottom of porous surfaces to loosen and remove the hard-to-get-to wax. These special wetting agents allow you to remove decades old floor finish at a much faster rate as compared to other wax strippers. Pro Strip also works excellent for removing oil stains and soils from porous surfaces such as concrete. Pro-Strip is not to be used as a routine cleaner but for occasional use when necessary to restore floors to a new appearance.