If it's on drywall, then you cannot remove it.
A good oil based primer, then an oil based concrete paint.
oil based primer and then paint it
You have a contradiction ! - Latex primer CAN NOT BE oil based.
Your ceiling may have been oil based, or really anything other than latex. If you used latex primer over oil then there is really nothing you can do except remove it and get a super low gloss oil base.
Oil based primer is the best bridge between oil and latex paints. If oil based paints are not available in your area, a high adhesion acrylic primer over a well prepared surface will also work.
Yes you can, as long as the red finish paint is compatible with the tan wall. Acrylic and latex paints can't be applied over an oil based paint without a primer. A tinted primer can be used if you are not sure. Plus, a tinted primer will make the red paint cover better.
As long as the surface is clean and dull, then either an oil or acrylic primer can be used to cover oil-based paints.
Absolutly! You just have to check to see if the primer is first an exterior primer and if it will stick to glossy surfaces. You can lightly sand to rough up the surface or just clean the surface and apply the primer. For oil based primers I would recommend Beauti-tone's fast dry oil primer or Zinsser's oil based cover stain primer.
Yes. Oil based primer works over just about any surface.
Yes, if the primer is oil-based too (alkyd is good too)
Look, I've been painting for a long time and all I can say to you is Good Luck. You will never remove the primer from on top of the paint. Sorry.
Yes, you can,