Specifically designed with the finishing contractor in mind, this compound allows greater control and accuracy with less fatigue at the end of the day. Sheetrock® Brand UltraLightweight Joint Compound ideal for embedding paper joint tape as well as filling, leveling and finishing over gypsum panel joints, fasteners, bead and trim. Sheetrock® Brand UltraLightweight Joint Compound has professional-grade performance and is up to 40% lighter.