Painting over a stained piece
I've got a solid wood pine unit that's going into the main bathroom. Originally the piece was going to be done in a whitewash type finish. The bare wood was conditioned then some stain then some whitewash. Plans have changed and now it needs to be painted. The finish is a few years old now. So, where am I with this? Will the conditioner and stain interfere with the paint? How should I prep it from this point?
Another question on sealing the wood from moisture. This is a unit of five pieces being fitted together. Four have the whitewash already. Another unit is being added which is bare wood. I need to seal the bare piece and all the edges of all the adjoining pieces to reduce expansion and contraction of the joints underneath the paint finish. I was thinking primer on all the edges then maybe add a coat of paint to seal it off even better. When I asked what primer to use, the guy at the Home Depot told me to use the Behr paint & primer in one.
What do the pros here think would be the best way to prep for this?