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How to Apply Veneer Plaster to Drywall

Drywall, consisting of flat sheets of gypsum, is the modern alternative to old-fashioned plaster for covering interior walls. Drywall is much easier to work with than plaster and results in smoother walls -- sometimes too smooth. If you have a drywall wall and you miss the natural, classic look of a plaster surface, or if the drywall seams are wavy and uneven, a thin layer of plaster over the surface can give it a new look. This veneer of plaster is applied by a method called skim-coating.

Things You'll Need

  • Tarps
  • Stepladder
  • 10-inch-wide drywall knife
  • Standard plaster
  • Drywall sander
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Instructions

    • 1

      Take the furniture out of the room and lay tarps over the whole floor.

    • 2

      Remove all loose paint or other material from the wall by scraping it with your 10-inch drywall knife. If there are cracks in the wall, fill them with plaster and spread it smooth with your knife.

    • 3

      Spread plaster in a thin coat (about 1/8-inch thick) over one upper corner of the wall with the drywall knife, covering as much area as you can comfortably from one position.

    • 4

      Scrape the plaster flatly over the surface with the front edge of the knife, holding it at a steep angle to get a paper-thin layer of it over the surface. The plaster should fill any dips or depressions on the drywall while being almost transparent over the flat parts.

    • 5

      Let the plaster dry for four to six hours.

    • 6

      Apply a second layer of plaster if necessary to get to the natural look you want. Let the second coat dry for four to six hours.

    • 7

      Gently sand the wall with your drywall sander, getting it smooth and flat. The wall is now ready for repainting.