For best wood-finishing results, take it one step at a time
Refinishing your wood floors, furniture and other woodwork is much easier than most people imagine – you just have to go about it one step at a time. According to Eric Chaimberg, who works with a leading manufacturer of wood finishing products, professional finishing results can be achieved if you follow several important steps. Based on years of experience and know how, Chaimberg says the secret to a great finish is a good start. And the best way to ensure a good finish is by taking the time to prepare your surface properly.
Surface Preparation
For previously finished floors, Chaimberg recommends you use a cleaner to remove all dirt, grime, wax and polish from the wood. Any repairs that need to be done such as filling nail holes or dents should be completed after stripping but before sanding and staining. Remove dirt and grime with a vacuum cleaner and finally wipe down the surface with a damp cloth to eliminate all traces of dust.
Sanding
The next step is to lightly sand the wood to provide a smooth uniform surface. “Sand enough to obtain the desired finish smoothness yet not enough to gouge the wood or sand through the veneer,” Chaimberg says. Stripping closes the grain of the wood to the penetration of stain and finish. Sanding reopens the grain, evens out any discoloration that may have been left by a previous stain, and erases any scratches or blemishes in the surface.
Finishing
To add a protective finish to your surface, Chaimberg recommends using a fast-dry polyurethane. “Apply this clear finish to those tired old floors or that newly stripped flea market find,” he says. On unfinished wood, thin first coat with 10% mineral spirits. Stir contents thoroughly prior to and during application. Never shake the contents. Wipe or brush on a thin coat using a lint-free cloth, a pure bristle brush or a lambskin applicator. Apply evenly with long strokes in the direction of the grain. Allow to dry for at least two hours and sand lightly using very fine sandpaper (220) or steel wool (0000). Remove all dust and apply a second coat as above. If a third coat is desired, resand and apply as above.