Lead-free tin-copper solder with a tensile strength 5,800 psi. It has a NSF 61 Certification for safe use in potable water applications. It melts and performs better than 95/5, with a melting temperature of 445°F.Lead-free tin-copper solderMelts and performs better than 95/5Melting temperature 445°FTensile strength: 5,800 psi