Sheetrock® Brand Lightweight Setting-Type Joint Compounds (Easy Sand™) are chemically setting compounds for drywall interiors and exteriors that permit same-day joint finishing, and, usually, next-day decoration. Compounds are lightweight for easy handling and sand easily for fast, smooth finishing. They are ideal for heavy fills and are virtually unaffected by humidity. They provide low shrinkage and superior bond, which makes them excellent for laminating gypsum panels to gypsum panels, to sound-deadening boards, and to above-grade concrete surfaces. In addition, they can be used for filling, smoothing, and finishing interior concrete ceilings and above-grade concrete; and for finishing joints in exterior gypsum ceiling boards. To meet varying job requirements, a full line has been developed to provide a choice in setting times. The suffix number identifying each joint compound indicates an approximate setting time. For example, Easy Sand 90 sets in approximately 85-130 minutes. Other setting times available are 20 (20-30 minutes); 45 (30-80 minutes); and 210 (180-240 minutes). For patching applications requiring very quick setting, Sheetrock Brand Patching Compound–Easy Sand 5, with a setting time of 8-12 minutes, is available.