1LB Nickel Silver Brass Powder Ultra Fine 325 Mesh ASTM B122 Heat Thermal Paste Faux Metal Cold CastingMade in USA 16 85 Buy It Now or Best Offer The usual formulation is 60 copper 20 nickel and 20 zinc Typical alloys contain 65 copper 10 to 18 nickel and the remainder zinc Nickel is added to