How to Stop Paint From Cracking

Determine the cause of the cracking paint. There are a few potential causes, such as aging or moisture. In the case of moisture, it is important to get a paint that can withstand humidty, such as the paint used in bathrooms.

Sand the cracking paint. Use a fine-grit sandpaper, such as 400 or 600 grit, for the best sanding results. Sand according to the specific surface. For example, sand the direction of the grain of wood surfaces. If the surface does not have a grain direction, use the sandpaper in one back and forth direction. Sand until the surface is smoothed and the cracks in the paint are gone.

Apply a primer to the painting surface. Priming the surface ensures the paint has an appropriate preparation and prevents cracking in the new paint. One potential cause of the cracking is too little preparation. Allow the primer to dry.

Look at the paint directions. Some paints require diluting while others are ready to paint. If it requires diluting, always follow the directions for water measurements on the paint can accurately to prevent cracking from thinning the paint too far.

Pour the paint into a painting tray. Apply the paint to the surface with either a paint brush or a roller. Paint brushes are ideal for smaller surface areas while rollers are ideal for larger surface areas like a wall. Allow the paint to dry and apply another coat of paint.