"Staining over clear coat without sanding is possible but not really recommended. Some stains don't work when combined with other stains. Sanding removes the unevenness in the wood. It also removes all dirt that can prohibit the stain from…"
"The usual thing to do is to remove the existing coating before applying a color stain, then coming back over the color stain with another clear coat or two.
We have never seen good results trying to color stain over a clear coat, but if you…"
"To make sure you will not regret the outcome, try to test a part or a portion where you stain directly on a coated log and try to stain a part of the logs where you already sanded and try to look which has the best quality."
"Yes, possible, but you'd need to know what's on there now and make sure what you put over top is compatible. A hard polyurethane clear coat will be hard to stain over than a softer water-based latex. An oil-based interior clear coat may be…"