In rooms where most of the plaster is securely attached and damage is restricted to some blemishes and cracks, the following steps will result in a successful job:
- Remove all unnecessary hooks, nails, fittings, and loose or broken trim.
- Remove and save electrical cover plates and light fixtures.
- Using a four inch putty knife lift off any loose pieces of wallpaper and plaster.
- Paint the entire wall surface with a pigmented shellac. This pigmented shellac will reduce the moisture damage from patching plaster and other products used in the restoration process. The pigmented shellac is also a very good primer.
- Patch any holes or imperfections in the wall surface using a patching plaster or similar compound. Use a latex caulk to patch thin cracks.
- Re-prime all patched areas and inspect for any new areas of bubbling or other damage caused by the patching or priming. If wallpaper bubbles appear, cut them out, re-prime, patch and prime the patched area again.
- Once all the wall surfaces have been primed, patched, and re-primed as necessary, latex paint may be used for the final paint coat. It may be necessary to use a texturing additive in the paint, or use a texturing coat under the paint, in order to blend the original and patched surfaces of the wall into one texture. Please note that higher gloss paints show imperfections more than flat paints.