Do it 1-1/2 oz. Acid 40% Tin, 60% Lead Solder is designed for general-purpose use, making it i for a variety of repair tasks such as fixing gutters, auto radiators, and filling metal seams. This solder reliable performance for these applications, but it is important to note that it is not suitable for plumbing or electrical repairs. For those specific needs, other types of solder with the correct composition should be chosen to ensure safety and effectiveness. follow safety guidelines and select the appropriate solder for each job to achieve results and avoid any potential hazards. Model Number: 53034