CUSTOM BLDG PRODUCTS DPFXL4-4 Fix All Compound, 4-Pound, Off-White Fix-it-all is an all-purpose patching compound that is fast-setting, non-shrinking, in a powered form It mixes quickly in water and sets hard in 30 minutes Fiber reinforcement creates a strong bond and allows fix-it-all to be sawed, drilled, filed or sanded after drying