COMPOUND PATCH ALL PURPOSE 4LB Specifications: Application: For ceiling floor projects and interior wall Compositions: Silica Crystalline Calcium Carbonate DAP Presto Patch is an all-purpose high-performance patching compound formulated to set fast and dry hard. Set time is 10 to 15 mins and is ready to paint in 30 mins. Great for all interior wall ceiling and floor projects. Presto Patch is easy to mix with water is non-shrinking and sandable. May be filled drilled or nailed once dry. This powerful patch allows you to finish any project in less time than traditional patching compounds. Provides an excellent floor underlayment for patching and leveling before installation of floor coverings.