USG Sheetrock Brand Durabond 20 Joint Compound is a setting-type compound that provides faster finishing of drywall interiors, even under slow drying conditions. Rapid chemical hardening and low shrinkage permit same-day finishing and usually next-day decoration. It features exceptional bond, virtually unaffected by humidity extremes, and is are ideal for laminating double-layer systems, particularly fire-rated assemblies, and for adhering gypsum panels to above-grade concrete surfaces. May also be used for surface texturing and for filling, smoothing and finishing interior above-grade concrete. Note: Setting-type joint compounds should not be used for skim coating due to dryout concerns. • Joint compound for same-day drywall joint patching and finishing • Exceptional bond with low shrinkage • Unusual check crack resistance in heavy fills • Excellent check-crack resistance in heavy fills • Unique resistance to humidity • 20 minute working time
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