Sheetrock Durabond 90 Setting Type Drywall Joint Compound, 25 lb is a high-quality, asos- powder compound designed for drywall finishing that sets in just one day. This durable compound is i for interior gypsum panels and exterior gypsum ceiling boards when protected from direct weather exposure. It unique humidity resistance, with hardening rates that remain virtually unaffected by high humidity or changes in moisture levels. The product provides an exceptional bond with low shrinkage, making it a for applications requiring faster finishing. It is also widely used for patching and touch-up work, featuring a natural color that blends well with drywall surfaces. Each 25 lb bag covers approximately 300 square feet and has a shelf life of 12 months, ensuring reliable performance for your drywall projects. Model Number: 380581