I'm in the process of finishing a gift for the missus. I already has several coats of zinser clear shellac on it, I thought I might top coat the top with poly for more durability, but I dont think the regular is de-waxed. I picked up a can of the zinser sanding sealer shellac that is dewaxed so I don't make the same mistake again. Question is, can the seal stuff be applied over the regular, then polyed over that?
Matt