Ready mixed and ready to use the unique Mini Fill Hole & Crack Filler is a gypsum based compound that comes complete with a patented built in spreader and air-tight stopper. Quick drying this lightweight filler dries hard like plaster and is suitable for cracks and holes of any size in plaster and drywall. Once dry it can be sanded, sealed, drilled, plugged and painted. Better yet it's water based so clean up is easy with simple soap and water.