SD16810 Coral Sands DryMayco Stoneware glaze in 10 lb bag. Dry formulas are added to water and used in buckets for dipping or pouring techniques. Many functional potters prefer dipping to painting for even coverage. The colors and formulas are identical in dry form, minus the added organic gums. Mayco Stoneware Dry glazes (SD is the prefix, it stands for Stoneware Dry) are great for pieces with a lot of surface texture and for layering techniques.