CGC Synko® Brand Redi-Filler All Purpose Drywall Compound is a drying-type product which may be used for taping, filling and finishing joints, trims and surfaces of gypsum board. It is a vinyl-based formulation, specially premixed to a creamy, smooth consistency and ready to use right from the container. Protect wet joints and product from freezing. Choose CGC and Synko products for professional results.