I can’t remember where, but there was an article written about some study of gasket lacquer and it’s a nice finish but not necessary by itself, as it doesn’t seal well. Water based or oil based poly when dipped and hang dried works well and seals for sure. I usually use either leather dye with denatured alcohol or usually trans tint with denatured alcohol to color shafts, or even veneers for that matter. There’s a finish poly fin my buddy uses and it’s awesome, but the stuff is hard to get I guess. No target burn.