I put a hole in my wall a while ago. I made a patch for it with a wood backing, two drywall patches and spackle in the middle and on top.
I painted over it with CIL (white eggshell latex) paint/primer. Contrary to the claim on the can, the paint did not stick to the spackle. I ended up peeling it off as well as the area around it revealing some of the old chalk paint as well. Apparently painting latex over latex will "activate" the old paint.
I used more spackle to try to smooth out the damage that was done. I then used Kilz Oil Base primer to seal the spackle. I then used the CIL again on the wall. This time it sticks to the wall.
The problem I'm having is that the patch of wall were I primed it with Kilz is noticeable. Essentially there's an area of the wall that is marked with brush strokes from the oil based paint. I tried to paint over with more CIL. I used a bit more than a gallon of CIL on the entire wall and the patch is still visible. This was roughly 4-6 coats on the wall.
What can I do to hide this? I read that latex paint shouldn't be sanded. I tried it and the sand paper won't grab at it. I suppose I could try mudding the wall with more spackle. But I'm worried about doing it on top of latex paint. I'd also likely increase the area of the problem, not to mention I'll have to use oil primer again.
One suggestion I read on a DIY forum was to use Kilz Build Primer. It seems to be designed for this kind of thing. Should it be oil or acrylic? I'm not sure which one to use. Any thoughts on this? Will it work?
I'd hate to bust out the patch of wall or the whole wall because of this so any advice would be helpful.