How To Re Plaster A Concrete Wall
Before you begin to plaster your concrete walls you need to remove peeling paint and flaking bits of old plaster.
How to re plaster a concrete wall. When you re done wipe the wall with a damp cloth to pick up what you loosened with the brush. Plaster is applied to concrete masonry surfaces in two or three coats consisting of basecoat s and a finish coat. Plastering a concrete wall takes time. Use a wire brush to clean stains left by the mold or mortar joints.
As a result many older homes and some new homes have plaster walls. Again re plastering is the only cure. Work in small sections starting at the bottom and finish each section before you move onto the next. Spread the plaster upwards as evenly as you can.
However avoid saturating the masonry either by excessive spraying or by exposure of uncovered masonry walls or. Use small amounts of plaster and lots of pressure as this will give the smoothest look. Put some plaster on a hawk board which you can buy here and use that to push the plaster onto the wall. While plaster is best applied over wooden strips the material can also be applied directly to plywood sheets or concrete.
Step 2 apply a layer of dash. Plaster is a construction material that was used for finishing walls before drywall became widely used. Caulk cracks and kill any mold on the walls. Conventional plastering covered here or drylining which is a very different method.
To test whether the wall is ready to accept new plaster run your finger over the surface. Your walls should be free of paint oil and dust so the plaster can bond properly. Faced with the need to re plaster you have two choices of how to go about the job. Drylining consists of covering the wall with sheets of plasterboard usually fixed to a framework of battens.
Prime over stained areas to ensure the plaster will adhere properly. Prior to application of the basecoat uniformly pre moisten concrete masonry surfaces to aid in curing of the plaster. You will have to prepare the wall and allow for curing and drying time between applications of plaster. Repair any cracks in the wall before plastering it.