DAP DryDex Spackling provides a unique dry time color indicator that verifies when the patched surface is dry and ready to be sanded and painted. Provides a smoother finished surface in a shortened amount of time. DAP DryDex Spackling may be used to fill holes and cracks in surfaces such as drywall, plaster, wood, brick and stone. Its ready-to-use formula spreads easily for fast, professional repairs that will not crack, crumble or flake. DryDex dries hard, sands easily and is paintable. Interior/exterior use.