Apply Extra Coat On Prefinished Hardwood

The urethane used in sealing wood surfaces is more commonly known as polyurethane.

Apply extra coat on prefinished hardwood.

Lightly sand with a dull 120 to 150 grit abrasive screen or 2 steel wool under a heavy floor buffer. I read the question about the differences between laminate hardwood and pre finished. Traditionally hardwood flooring was always installed as unfinished planks that were then stained and finished with a protective surface layer right on the worksite. In general factory finishes and comparable coatings you apply by site finishing such as polyurethane take little maintenance.

Keep the floor clean use furniture floor protectors and expect to apply a new coat of polyurethane on the floor every five to. It cannot be done. You should vacuum the entire floor frequently with a soft hardwood floor attachment which is especially important if you have prefinished hardwood flooring because the bevels collect dirt quickly. As noted the prefinished allows for the possibility of spills going through the slats.

Before you attempt to apply polyurethane to a prefinished floor contact the flooring. Difficult to repair if pre finished hardwood flooring gets scratched or dented during installation you have no option but to replace the entire floorboard. There is no way you can ever manually duplicate the factory coating. Prefinished floors offer serious challenges to re coating because of the type.

Yes a polyurethane finished hardwood floor may have additional coats of polyurethane applied. Forget the notion of trying to fill sand and re seal with your own coating.