Clear Wood Finishes
How one painter applies lacquer and varnish to interior woodwork and camouflages the nail holes.
Synopsis: An experienced builder and painter explains techniques he uses to apply clear finish to interior woodwork, mostly by using spray equipment. A chart that accompanies the article offers details on custom-matching putty to fill nail holes in stain-grade work.
People like the natural beauty of wood grain and figure. So just about every house, whether new or old, has some type of clear finish (see article sidebar) applied to a wood surface. Even houses with painted walls and moldings typically have a fireplace mantel or a set of cabinets that shows off the natural color and figure of the wood. Side by side, the painted and natural surfaces add a stylish note of contrast to a room. They also add to the painter’s workload.
If you read my earlier article on spray painting trim, you’ll recognize some of the techniques to follow. Preparing wood for the application of clear finishes is very similar to preparing it for painting, though only up to a point. For example, filling the nail holes calls for a different approach when you can see through the finish.
If I’m doing enamel trim, I prefer that the carpenters install all the trim before I paint. But for varnishing, I like only the door and window casings to be installed. Other moldings can be prefinished and installed after the walls have been painted. I can get away with this because the joint where varnished moldings meet the wall doesn’t have to be caulked—slight cracks just don’t show up very much. Also, I have more control over the finish on the moldings when I’m working on them at a convenient height. A disadvantage to prefinishing moldings is that the nail-hole putties won’t have a top coat of varnish, but since baseboards and crown moldings are…