Glass Alchemy Portland Gray (85) - Small Frit 4 oz. (70 grade) Small (70 grade) 4 oz Jar

Portland Gray was developed to fill a hole in the borosilicate palette. There were no gray rods available and the pre-forms went almost white... how could you make a believable shark? So we made the first opaque gray; we chose neutral # 5 on the gray scale as a starting point.