Do it 1/2 Lb. Solid 50% Tin, 50% 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 combines 50% tin and 50% lead to provide reliable performance in these applications. It is important to note that this solder is not suitable for plumbing or electrical repairs, where specialized solder types with different compositions are required. follow safety guidelines and select the appropriate solder for each job to ensure effective results and avoid any hazards. Model Number: 53053