Weldcote 40/60 Tin/Lead Acid Core Solder Contains A 2.30-3.20% Acid Core. Acid Core Solders Are Used For Soldering Materials With Poor Solderability (Steels, Zinc, Heavy Oxidized Nickel, Aluminum, Etc.). With Some Exceptions, Tin-Lead Solders Can Be Used To Solder Copper And Most Copper Alloys, Lead, Nickel Alloys And Steel. The 40/60 Acid Core Solder Is A General Purpose Solder Used For Non-Electrical Applications. It Is Used For Applicaitons In The Sheet Metal, Stained Glass, Galvanized Gutters, And Radiator Repair Industries. The Tin-Lead Solders Are Not Recommended In High Stressor Or Vibration Joints In The Cooling Industry Due To The Lack Of Sufficient Elongation Properties. This Product Contains Lead And Should Not Be Used In Potable Water Systems.
