I plan on skim coating a small bathroom's walls because of several different paint textures... mostly from patch jobs, and different roller naps. Also removed baseboard trim to remove old flooring, so there's a bunch of damage under where the trim was. I plan on priming with PRO-999 - Rx-35 Sealer/Primer before skim coating.

I have some inside corners where there are several coats of bad paint globs and visible tape. I am assuming I should cut out all or most of the tape and bed some new tape? Should I bed the new tape (under it) and then make the top mud the skim coat? Or should I mud under and over the corner tape and allow to completely dry before skim coating?

What do I do about caulk still on some of the drywall between a fiberglass shower wall? Can I just skim coat right up to it? I also have crown molding at the ceiling that I would really love to not take down... I assume I can just skim coat right up to it as tight as possible?

Thanks!

 

If the tape is well adhered there probably isn't any need to remove it. You can mud up to the woodwork but you'll want to be a little extra neat there. Mud that gets onto the woodwork can be wiped off while wet or sanded off when dry.

 

You would want to remove as much caulk as possible, not a solid base to patch over, just get some course sandpaper since your skimming the wall anyway.

Feather the skim right up to the edge of the crown, if that trim is good and solid I would think you would want to save it!

 

So for the corner, should I just establish a new corner with new tape over the existing? It might be adhered but just because of several layers of paint over it. I can definitely see wrinkles in spots.

 

If there are air bubbles under the tape at bare minimum you'd need to cut them out and fill with mud. Hard to say from here if the tape should be removed and redone. I would not tape over wrinkled tape.

 

Ok, so some of the corner sloppiness was from a horrible caulk job that was painted over. I cut that out, and decent section of corner tape. It was pretty embedded but I had to get it out to clean up the corner.

Should I remud and tape the corners before I skim coat? Should I use hot mud for this? I will need to prime before the skim coat as well.

 

The first step in finishing is applying the tape. You can use either regular j/c or setting compound.