Sheetrock® Durabond® 45 Setting-Type Drywall Compound is a multi-use product. It is an excellent compound for embedding tape, bead, and trims on gypsum panels. It's special formulation provides a high strength bond with low shrinkage that finishes with a hard, plaster-like surface when dry and is virtually unaffected by humidity. It is also ideal for laminating gypsum panels to above-grade concrete surfaces. CGC Sheetrock® Brand Durabond® 45 Setting-Type Drywall Compound can also be used to fill, smooth and finish interior concrete ceilings and above-grade concrete.