Solder Wire: Kester .031" 24-6040-0027 Sn60Pb40 3.3%/44

The Kester 24-6040-0027 is a professional grade solder wire featuring a Sn60Pb40 alloy composition with 3.3 percent 44 rosin activated flux, ideal for electronics assembly, PCB rework, through hole soldering, and precision repair work. At 0.031 inches in diameter, this wire balances control and feed rate for medium-sized joints where reliability and clean joints matter. The 60 percent tin and 40 percent lead formulation melts at 183 to 190 degrees Celsius, making it compatible with standard soldering irons and wave soldering equipment. Trusted by professionals across the electronics industry, Kester solder is manufactured in the USA and remains a dependable choice for technicians and manufacturers who demand consistent, high quality results.