Learn More › Q: Many of the drywall seams on my 40-year-old house are bulging. It doesn’t appear as if the joint tape is ...

Powdered drywall mud, also called “setting mud ... depth over a wider area to reduce the appearance of a bulky butt-joint seam. Feather out the edges of the swaths well with the knife for ...

The material is made of two key parts: the drywall paper and the drywall mud joints that fills seams and covers screws. These two components absorb a paint coating differently, creating an uneven ...