Note: DUROCK cement board product may also. Drywall mu also called joint compound, is a gypsum-based paste used to finish drywall joints and corners in new drywall installations.
Reduced surface alkalinity versus conventional cement board. Do not use all-purpose joint compound or paper tape in wet areas.
Adhesive on the backside of wall board behind any joints can help control differential movement. Use multiple, thinner coats of joint compound and allow to dry.
You can use drywall compound there. Only in the cement board areas. If thinset and kerdi will stick to the joint compound, moisture should not get back there.
Use cement board such as Durock behind tile in bathrooms and. Portland cement mortar. Conventional paper drywall tape, joint compound and drywall nails. In this video, I show you how to tape cement board joints.