Forney 38109 Solder, Silver/White, 4 oz

50% tin and 50% lead. Use with appropriate type flux such as Forney 38120, ruby fluid, Forney 38125, paste flux or Forney 38127 and 38128, hi-temp fluxes. Tensile strength of 5500 psi. Melting temperature rating of 421 deg F (216 deg C). Not suitable for aluminum.