Joint Compound, often referred to as “mud,” is a plaster-like material used to finish drywall joints and cover screw heads and imperfections on walls and ceilings. It provides a smooth, even surface for painting or wallpapering. Available in different formulations, joint compounds can be used for various applications, from embedding joint tape to creating textured finishes. It is an essential component for achieving a polished and durable drywall finish.