CMP Solder WSP604012501 60/40 Tin/Lead Premium Solder For Stained Glass, 1 Pound Spool, 1/8" Diameter Excellent solder for stained glass applications Good flow and control when working on delicate projects 60% Tin and 40% Lead Not to be used in lead free applications; such as potable water systems 361 Degree Fahrenheit melting point 1/8" Wire Diameter 1 Pound Spool