Drywall mud, also known as joint compound, is a gypsum-based paste used for finishing drywall joints, corners, and for repairing cracks and holes in existing drywall and plaster. Choosing the right ...

Start by breaking or cutting out broken or crushed areas of the drywall, then peel away any paper shreds left around the edges. Mix up a small batch of setting-type compound; if you mix too much, it ...