NOVAK 5834 Lead-Free Silver Solder/Flux Combo This is the Novak Lead-Free Silver Solder Flux Combo. Features:perfect companions for the ultimate solder connections High quality solder provides the best connections, liquid flux makes your job that much easier Same solder that Novak uses in its electronics Environmentally friendly and specially formulated for hand soldering Solder is 1.0mm in diameter and contains 3% silver for high-conductivity, low-resistance an