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How to Repair Venetian Plaster

Helen Jain

Venetian plaster walls are stronger than drywall material, and far more attractive. When the wall is damaged by cracks or nicks, the aesthetics of the plaster diminish. Repairing the problem is not easy, because even the slightest discoloration will show through the plaster.

Venetian plaster is used in a variety of building projects.

According to Paint Pro, the slightest mistakes will show up, and are actually enhanced.

  1. Apply drywall to the damaged area. The exact application methods will differ, but typically a spatula is used to apply the drywall and spread it over the damaged area. Smooth it out as close to the level around it as possible and allow it to dry.

  2. Sand the drywall material until it is smooth and even. Use an up-and-down motion to sand, and wipe the surface with a cloth to remove the dust from sanding.

  3. Apply the Venetian plaster using a steel spatula. Only steel is used to avoid discoloration during the application process. Smooth the plaster with the spatula. Allow the plaster to dry. It takes between four and 24 hours to dry, depending on the specific plaster used for the project.

  4. Apply two to seven coats of plaster. The exact amount depends on the plaster you use, so look at the instructions on the plaster to determine the exact number of coats for the project.