Taping compound, also known as joint compound, is a material used in construction and drywall finishing. It is applied to seams and joints between drywall sheets to create a smooth surface. This compound helps to hide imperfections and provides a base for painting or wallpapering. There are different types of taping compounds, including pre-mixed and powdered forms. The pre-mixed version is ready to use, while the powdered form requires water to be added before application. Taping compound is essential for achieving a professional finish in drywall projects, making it a common choice among contractors and DIY enthusiasts.