Sponge the wood’s surface with warm water to minimize raising the grain and to pick up dust. Allow the wood to dry thoroughly before sanding.
Sand the wood evenly with sandpaper, starting with 180-grit paper and working up to finer 220-grit paper. Use a sanding machine to sand large areas, and sand detailed areas and edges by hand. Finally, hand-sand the surface with 320-grit sandpaper.
Wipe the wood with a tack rag to remove sanding dust.
Brush on a thin, even coat of stain, using a natural bristle brush. Allow the stain to dry thoroughly, and apply additional coats until you are satisfied with the color. Allow the stain to dry before applying shellac.
Mix shellac with denatured alcohol in a 50/50 ratio. Wipe the mixture on the wood surface with a cotton rag and let it dry. Rub the wood surface with an abrasive pad to work the shellac into the wood. Repeat this process a second time for additional protection.