Staining, sealing, oiling and clear-coating wood: product choice, application and fixes for common finish problems.
How to Fill Nail Holes in Wood Before Painting Small nail holes are easy to fill, but they are also easy to make visible. Paint will not hide a shallow dent, a dark shadow, or a ring of raised wood around the fastener. The best results come from treating the Read more
Small dents are common on furniture, doors, trim, and unfinished boards. They usually come from dropped tools, clamps, or pressure against a hard edge. Before staining, the repair needs to do more than look smooth: it must absorb color at roughly the same rate as the surrounding wood. A filler Read more
Mold stains on wood are not always a surface problem. Mold can leave dark marks in the grain even after the living growth is gone, and water damage may have caused decay underneath. Applying stain, paint, or clear finish too soon can trap moisture, highlight discoloration, and cause peeling or Read more
Old paste wax is a problem because paint does not reliably bond to it. Even a thin, invisible film can cause fisheyes, crawling, soft spots, peeling, or poor adhesion when the new finish dries. Wax also fills sanding scratches and can spread across a larger area as you work. The Read more
Silicone contamination is one of the more stubborn surface problems in woodworking. A small amount of cured or uncured silicone can cause stain, paint, varnish, and lacquer to bead up, separate, or form crater-like “fish eyes.” It can also remain in pores and sanding scratches after the visible bead has Read more
Grease, wax, silicone, and oily fingerprints can keep a finish from bonding to wood. They can also create fisheyes, craters, uneven stain absorption, and dull patches that show up only after the finish dries. The right cleaning method depends on the contaminant, the wood species, and whether you are applying Read more
Water stains on bare wood are usually caused by a wet glass, plant pot, leaking pipe, or cleaning spill. Before refinishing, the important question is whether the mark is only in the surface fibers or has penetrated deeply. Light gray or white marks are often easy to remove. Dark brown Read more
Applying finish to wood that is too wet is one of the easiest ways to create a problem that appears days or weeks later. The finish may turn cloudy, peel, crack, or dry unevenly as the boards continue to lose moisture. Stain can blotch, paint can blister, and glued joints Read more
Wood boards should be acclimated before you glue them into a panel, build furniture, or apply a finish. Acclimation gives the wood time to reach a moisture content that matches the room where it will live. Skipping this step can produce cracked glue joints, warped panels, open miters, split end Read more
Choose the Right Wood Before Staining A consistent stain color starts with the boards, not the stain can. Wood species, grain density, sapwood, knots, and moisture content all affect how much pigment the surface absorbs. Two boards labeled with the same species can still finish noticeably different if one is Read more