Do it 1/2 oz. Rosin 60% Tin, 40% Lead Solder is designed for general-purpose use, making it an i choice for a variety of repair tasks such as fixing gutters, auto radiators, and filling metal seams. This solder a reliable blend of 60% tin and 40% lead, providing strong adhesion and durability for metal repairs. It is important to note that this solder is not suitable for plumbing or electrical repairs, where specialized solder types with different compositions are . follow safety guidelines and select the appropriate solder for each specific job to achieve results and maintain safety. Model Number: 53041