Formulated by Legor® Group, this premium yellow master alloy offers exceptional fluidity and better grain structure. Additives include less silicon and more of the less-common metals. The finished castings have fewer defects and need less finishing time, making this ideal for high-production fashion lines. A master alloy casting grain is a pre-formulated mix of base-metal elements; add the appropriate amount of precious metal grain to the master alloy to create the casting alloy you need. Sold by the troy ounce (ozt.).