Plaster is a wall and ceiling covering material. It can be smooth, rough or textured. In order to paint a plaster wall, you will want to sand it down to the bare plaster for the most effective and lasting paint application. In order to sand a plaster wall, you will need to use coarse sandpaper on rough textured surfaces and finer grit sandpaper on smooth surfaces. It is important to take your time when sanding plaster because you could crack or damage the wall if you sand too vigorously. Sanding plaster is not difficult, but it is messy and time consuming.
Things You'll Need
- Sandpaper, 60, 80 and 120-grit
- Sanding block
Assess the surface of the wall or ceiling. Note whether it is smooth, rough or textured.
Attach a 60-grit sandpaper to a sanding block to sand rough or textured plaster surfaces. Sand the wall lightly with the sanding block.
Remove the 60-grit paper and attach 80-grit sandpaper. Continue sanding the wall until you are satisfied with the surface of the wall. Smooth the texture with the sandpaper until the wall can be painted with a brush or roller, depending on your preference.
Attach 120-grit sandpaper to the sanding block and sand a smooth-surfaced wall or ceiling until the surface is completely smooth and free of imperfections.
Tips & Warnings
- Cover over furnishings and close off doorways with plastic to protect your home from plaster dust.
- Wear eye and face protection.
How to Smooth a Textured Wall
While creating a textured wall is great if you want to hide dents, cracks and other flaws, texture is not for everyone....
How to Paint Plaster Walls
Many designers believe that plaster walls display a subtle smoothness and depth that drywall cannot equal. While common to many older homes,...
How to Use Fiberglass Mesh to Repair Plaster Walls
Cracking or crumbling plaster walls are a nuisance to the structure and beauty of a wall. Though it may be tempting to...
How to Wet Sand Plaster
Easy-to-work-with, quick-setting and inexpensive, plaster provides a common way to patch walls and ceilings. For a smooth, professional finish on your plaster...
How to Paint New Plaster
Painting some surfaces doesn't require priming or other extensive prep work. Fresh plaster surfaces, however, almost always need proper conditioning before painting....
How to Sand a Plaster Pool
The walls and bottom of plaster pools can become rough over time because of use, chlorine and other additives in the water....
Different Kinds of Sandpaper
Sandpaper comes in many different varieties. Each home project you do, whether you are sanding wood or metal, requires a different type...