Now we will prepare the frame of the OG.

After sanding the frame (80, 180, 240, 320), a wood stain can be used.

After letting the wood stain dry, shellac can be applied.

Water-based Varnish (see this information sheet first). You do not need to raise the grain if you have used shellac as a sealer coat first (tutorial videos on How to Apply Water Based Urethane, and How to Sand Between Coats of Wood Finish, and Why to Sand Between Coats). Use 2-3 coats for a good finish.