When painting drywall, you have to consider the condition of the surface. If the surface is rough, it will affect the adhesion of the paint. Before you paint over the drywall, you must sand the wall using a drywall sander or fine-grit sandpaper. The walls must also be primed. Before painting, clean the walls thoroughly with a mild soap and water solution. Ensure that there is no dirt or grease on the drywall.
Do You Paint Drywall?
If there are cracks in the drywall, you can repair them by applying plaster of Paris or joint compound to the surface. You should ensure that the plaster dries evenly and smoothly. Warm and humid temperatures can increase drying time.
Alternatively, you can apply a fiberglass patch with adhesive. You can also use oil-based primer to cover water-damaged drywall. The drywall contractor is applied with a paint roller. After four hours, the surface must be sanded to remove any imperfections. Next, you can apply the first coat of paint to the surface.
Usually, painting the drywall directly is not a good idea. It will result in poor coverage and you may have to use multiple coats of paint. Also, most paints will peel off the drywall after some time. It is better to use a primer before painting. The primer will bond with the drywall paper and provide a surface for the final paint color to adhere to.