Can I add a marine varnish to gloss painted window ledge to protect better from shower water?

Questions & AnswersCategory: Interior Trim, Windows and DoorsCan I add a marine varnish to gloss painted window ledge to protect better from shower water?
Anonymous asked 10 years ago

Just painted widow ledge that gets wet during shower.

1 Answers
MagicDave answered.

Yes but it might tend to "yellow" the color a bit… a better way is to paint it with EXTERIOR Grade paint…