thin in our layers at first and learned that it’s better to roll over the same area maybe two or three times before going in with this rubber trowel to smooth down the compound mix. it is so much easier to work with a rubber trowel than a metal one!
6. once the layer of joint compound dries, repeat steps 4. and 5. until the texture is gone and you’re left with only smooth walls.
we ended up doing around three layers of joint compound in each room/area. in tighter spots, like around the door and window frames, we had to go in with a small metal trowel to deposit the joint 