all purpose compound to ‘blend’ drywall to durock
Due to a remodel job the back side of a shower niche protrudes into a room I plan to drywall. It’s the smooth face of 1/2 durock. How do I blend this into the new drywall I will be putting up. I thought of using 5/8 without taping the joint and a 1/8 in skim coat of all purpose.