Oatey 29024 Safe Flo 0.117-Inch ga. Bulk, Silver, 1/2 lb. N/A Made in USA Copper, bismuth, tin and silver alloy. 420 F - 460 F melting range. Meets ASTM Standard B-32 and the requirements of the Safe Drinking Water Act. Formulated for plumbing/potable water line applications. Lead free; meets the requirements of the Safe Drinking Water Act. Wide melting range: 415F - 455F Use of flux required Can not be used on aluminum