Sheetrock Brand Lightweight Setting-Type Joint Compound (Easy Sand) is a chemically setting compound for drywall interiors and exteriors that permits same-day joint finishing, and, usually, next-day decoration. It is lightweight for easy handling and sands easily for fast, smooth finishing. It is ideal for heavy fills and is virtually unaffected by humidity. It provides low shrinkage and superior bond, which makes it excellent for laminating gypsum panels to gypsum panels, to sound-deadening boards, and to above-grade concrete surfaces. In addition, it can be used for filling, smoothing, and finishing interior concrete ceilings and above-grade concrete; and for finishing joints in exterior gypsum ceiling boards. For patching applications requiring very quick setting, Sheetrock Brand Patching Compound–Easy Sand 5 sets in approximately 8-12 minutes.
Just as it is advertised, it sets up fast. I do miscellaneous sheet rock repairs for work and if you're patching holes, by the time you get finished patching you can almost sand right away. Mix small amounts because more often than not, it'll set up before you're done if you mix a full pan. I love this stuff. Fast fix. I'm in and out and on to the next job.