To figure out whether or not your wood floors are done later than a polyurethane, shellac, wax or varnish, or have a finish that has worn away and is no longer providing coverage, the American Hardwood guidance center suggests these tests: First is rule your hand higher than the wood. If you can atmosphere the texture of the grain, the Floor Tile Joining Strip has a penetrating finish (usually a raptness of a natural oil, such as linseed or tung oil, poisoned later than additives for drying) topped later than wax. Second, in an out-of-the-way spot, dab upon a tiny paint remover. If the finish bubbles up, it is a surface finish, later than polyurethane, which coats the floor in a protective layer.
The third is in an out-of-the-way area, area a few drops of water. If the water beads up and does not soak into the wood, the finish upon the Floor Tile Joining Strip is intact. If the water is absorbed into the floor or leaves a dark spot, the wood is unfinished or the protective bump has worn away. Fourth, if you sprinkle upon a few drops of water and white bad skin form beneath the droplets after virtually 10 to 15 minutes, the floors are hermetic later than wax. To surgically remove the white spots, use a fragment of good steel wool lightly dampened later than wax and massage gently. The last is if you suspect a varnish or shellac, put up with a coin and graze the surface of the floor in an inconspicuous corner. If the floor has been hermetic later than one of the older ability methods, it will flake off.