I prefer to leave my hives with natural wood finish.
I am not able to find Tung Oil or even Linseed oil here in Thailand so I was just going to use latex exterior paint I had leftover but then I see where it is ok to use wood stain.
Before I stain my hives, I just want to double check this is ok and won't have any effect on the bees.
Only on exterior surfaces.
Leave them out in the sun for a week for any fumes to dissipate before using them.