Kiln wash 1 lb bag high fire NEW Kiln wash is used to prevent glass/glazes from sticking to fusible molds, shelves and the kiln itself damaging permanently! Simply mix 4 parts kiln wash with 1 part water and mix completely. Apply using a soft bristle brush for best results. Apply 3-4 coats to new, previously untreated molds/kiln shelves or 1-2 coats of previously treated molds/shelves and allow adequate drying time in between each coat. For best results, apply kiln wash to molds in different directions for each coat. Fire the mold/shelves empty using a low fire setting to allow wash to adhere to molds/shelves. 1 lb. bag