Plaster walls are an elegant finish to any wall interior. But it is becoming common for deteriorating walls to be replaced by drywall because of its ease in installation and low cost. If a section of plaster is loose, it can still be salvaged if the damage isn't too deep. Repairing the damage with a plaster application is a choice alternative to removing and replacing an entire wall while keeping the same decor and beauty of the room.
- Skill level:
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Things you need
- Angle plane
- Drywall screen
- Bonding agent
- Mesh tape
- Mesh screen
Scrape the loose and damaged plaster along with its surrounding area with an angle plane or a rough drywall screen until the lath is exposed.
Apply a bonding agent over the lath and plaster with a paintbrush. Cover the painted area with mesh tape.
Mix the plaster, following the manufacturer's directions.
Spread the plaster onto the exposed lath with a trowel. Apply the plaster to the surrounding area to blend in the repair area. Skim off excess plaster, using perpendicular strokes. For example, if skimming off plaster in horizontal strokes, use vertical strokes on the next skim.
Measure and cut a section of mesh screen needed to fit into the repair area. Apply the mesh screen into the wet plaster. Let the coat set for 15 to 20 minutes.
Apply a second coat of plaster with a trowel, skimming off the excess.
Skim a final coat over the area to cover the mesh. Let the second layer set for 30 minutes and smooth with a sponge.
Prime and paint as needed.
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