Artex is a surface coating commonly used to coat ceilings in a home, although it can sometimes be found on walls as well. Plaster is used in Artex products to add texture and definition. This means the surface is not completely flat, which can make painting a bit more difficult. When painting Artex, it is recommended that you use emulsion paint. Apply at least two coats of paint to fully cover the entire surface. More coats may be needed depending on the color and personal preference.
Place a 3/4 inch thick lamb's wool roll cover over a 9-inch paint roller frame. Apply an extension pole to the paint roller frame so you can reach the ceiling or high parts of a wall.
Select an emulsion paint. Use a butter knife or screwdriver to lift the edges of the paint lid up. Remove the lid. Pour the paint into a paint pan. Alternatively, pour the paint into a bucket.
Dip the roller into the paint. Roll the roller over the textured portion of the paint pan, or over a roller screen to remove excess paint.
Roll the roller onto the ceiling or wall in long, straight lines. Roll back and forth along the line to fully coat the area. Dip the roller in more paint as needed. Continue until the entire surface is coated.
Allow the paint to dry. Apply a second layer of paint. Continue to add layers of paint until the surface is coated or the desired color is achieved.