How to Apply Joint Compounds Durock Cement Boards

The first step is to prepare the surface of the Durock cement board by sanding it down to remove any rough edges or bumps. This will help to create a smooth, even surface for the joint compound to adhere to.

Step 2: Apply the joint compound

Use a putty knife to apply the joint compound to the seams between the Durock cement boards. Be sure to press the compound into the seams firmly so that it fills any gaps or voids.

Step 3: Let the joint compound dry

Allow the joint compound to dry completely according to the manufacturer's instructions. This may take anywhere from a few hours to overnight.

Step 4: Sand the joint compound

Once the joint compound is dry, use a sanding sponge or sandpaper to sand it down until it is smooth and even with the surface of the Durock cement board.

Step 5: Apply a primer

Apply a primer to the Durock cement board before painting or finishing it. This will help to improve the adhesion of the paint or finish and prevent it from peeling or chipping.

Step 6: Paint or finish the Durock cement board

Once the primer is dry, you can paint or finish the Durock cement board as desired.