95/5 lead-free solid wire tin-antimony solder solder has a low temperature with a narrow melting range. It is primarily used for copper plumbing tube but can be used for other general soldering applications. The rapid melting characteristics require close fitting connections as it is difficult to "bridge" or fill wide clearances. Manufactured per composition ASTM B32 Alloy Sb-5. This solder is NSF 372 certified and meets the requirements of the US Safe Drinking Water Act. Complies with the EU Reach & RoHS directive.