How to Prepare Plaster Walls for Painting


Prepare Plaster Walls For Painting

Plaster has been around for a long time now and has been in common use as far back as Roman times when a version of plaster was used in many homes.  The reasons homeowners have liked it over the years is because its easily made, cheap and easy to find. Even now, there are people who keep pushing the plaster angle but more for the aesthetic and sturdy appeal it can offer over other newer materials in the market.

Plaster is a simple and thick material, manufactured from gypsum, water and sand. Nowadays though, the quickly and cost effectively applied material called ‘drywall’ seems to have taken plaster’s place.  Although drywall is the more common building application in today’s real estate world it still suffers from wear an tear more than the thicker application of plaster.

Painting plaster walls is not a difficult task to accomplish. It’s quite easy if you know your way around. Moreover, it’s important to follow the steps and process given so that everything will go smoothly (excuse the pun).

It is not that complicated to prepare plaster walls for painting by yourself. If you prepare and let the plaster dry off properly, the painting process will be easier and smoother ensuring the best possible finish.

You will need:

  • Rough Burlap
  • Medium-Grit Sandpaper
  • Regular Paint Primer
  • Alkali Resistant Primer


  1. First, make sure to fill, patch and sand any cracks (find out how to repair a plaster wall here) or holes in the wall so they may not appear later on when the painting has been done.
  2. Before painting the wall, leave any wet spots to dry off completely. This step will make you free from any moisture problems and will make it easier to paint. Use the squares of the rough burlap to wipe away white crystals that forms as the plaster dries off. Keep scrapping them off until you don’t see any of it forming anymore.
  3. Then, wash any wall that already has paint on it. Rough the surface a bit of medium-grit sandpaper. Apply a coat of regular paint primer and leave to it to dry. You can apply another coat of primer if necessary.
  4. Use an alkali-resistant primer to prime the wall if you are using oil-base paint. Leave the coat to dry completely according to the primer directions.

Now you are ready to get started on painting your plaster walls and either bringing them back to their former glory or modernizing them to fit your interior.

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