Oatey® 53185 Rosin Core Wire SolderOatey Rosin Core Wire Solder is a tin lead alloy wire solder with a rosin flux core. This solder is made for use in electrical applications, including wiring and other fine electronic work. Oatey products have earned the trust of plumbing professionals for over 100 years. Key Features & Benefits Wire solder containing rosin flux core 60 40 alloy made of 60% tin and 40% lead For electrical applications, like wiring and other fine electronic work Flux