Sheetrock? Brand Easy Sand? Joint compounds provide low shrinkage and great bond which make them excellent for laminating gypsum panels to gypsum panels sound deadening boards and above-grade concrete surfaces. They resist humidity and can be applied in damp weather allowing for same day joint finishing and faster job completion and are available in a range of formulations that provide a choice in setting times from 8 mins to 3 hrs. For interior gypsum panels and exterior gypsum ceiling boards For interior gypsum panels and exterior gypsum ceiling boards Weighs 25% less than conventional setting type compounds Sanding ease similar to a ready-mixed all-purpose joint compound Unique humidity resistance Exceptional bond with low shrinkage Check crack resistance in heavy fills Choice of setting times