The Forney 38051 Flo-Temp Lead Free solid wire solder is the premier solder on the market today. Highly recommended for potable water pipe joints, plumbing, refrigeration systems and non-electrical applications. Does not char. Flows evenly within the joint, has a low melting point. Hardens into a shiny fillet. Leaves no corrosive residue. Forney Industries is one of America's longest operating family-owned metal working product companies. Founded in 1932, Forney offers more than 5,000 products for the hardware, automotive, farm and ranch and do-it-yourself markets. If you've got metal working questions, we've got answers. We're committed to your success regardless of location size or needs. 1/8-Inch (3.18mm) diameter wire.-1/2 pound (.27 Kg) solder weight. 95-Percent Tin, 4.5-Percent Copper, .5-Percent Silver Grade. Tensile Strength is 6,400. Melting Temp is 430⁰ F (222⁰ C). Claims for warranty must be made within 90 days of the date of purchase. Proof of purchase required. This warranty does not cover any product that has been subject to misuse, neglect, negligence or accident, or that has been used in any way contrary to the purpose intended.