Rosin Flux

From the shop's description

The best flux for electrical and electronics repairs Apply flux when soldering to produce strong solder joints Easy to clean if needed (not required) Rosin is not conductive in dry conditions and has good insulation. Is not corrosive to metal substances such as circuit boards. Anti-oxidation effect on soldering iron head of gold-copper alloy substrate. Solder flux for semi-solid, not easy to dump. Approximately 30g