Canfield 50/50 Stained Glass Solder, 5 Pound Package Deal Sold in a package of 5 one pound spools 50% Tin, 50% Lead alloy Canfield 50/50 melts and flows as nice as many other maker's 60/40 Canfield's 50/50 melting point is 421 degrees F Solid core wire solder, 0.125 inch (1/8 inch) diameter