1. Prepare the surface. Clean, dust and dry the surface before you start. 2. Mix the plaster. In a bucket, mix the plaster powder with clean water until it has the consistency of thick cream. 3. Apply the plaster to the wall using a trowel or hawk. Apply in one or two coats, depending on how thick you want the plaster to be. Allow each coat to dry completely before applying the next one. 4. Finish off by sanding and polishing if required.

There are a few different ways to plaster a wall, but the most common procedure is as follows: 1. Apply a coat of adhesive to the wall. 2. Place the plaster onto the adhesive and smooth it out with a trowel. 3. Let the plaster dry completely before applying a second coat. 4. Apply a sealant over the finished plaster to protect it from moisture and dirt.