To figure out whether or not your wood floors are curtains similar to a polyurethane, shellac, wax or varnish, or have a finish that has worn away and is no longer providing coverage, the American Hardwood information middle suggests these tests: First is control your hand over the wood. If you can character the texture of the grain, the How To Clean Hardwood Floors Before Sanding has a penetrating finish (usually a immersion of a natural oil, such as linseed or tung oil, polluted similar to additives for drying) topped similar to wax. Second, in an out-of-the-way spot, dab on a tiny paint remover. If the finish bubbles up, it is a surface finish, similar to 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 going on and does not soak into the wood, the finish on the How To Clean Hardwood Floors Before Sanding is intact. If the water is absorbed into the floor or leaves a dark spot, the wood is unfinished or the protective layer has worn away. Fourth, if you sprinkle on a few drops of water and white spots form beneath the droplets after about 10 to 15 minutes, the floors are sealed similar to wax. To remove the white spots, use a fragment of good steel wool lightly dampened similar to wax and massage gently. The last is if you suspect a varnish or shellac, acknowledge a coin and scuff the surface of the floor in an inconspicuous corner. If the floor has been sealed similar to one of the older completion methods, it will flake off.