Omega lead-free solder is the ultimate in environmentalhealth management, manufactured in the U.K. from 96%tin, 3.5% silver and 0.5% copper. It is rosin-free, halidefreeand has a flux content of 3%.A fast flow solder, with good solderability, minimal clearresidue and a melting point of 217 °C. 250g reels.