Warton metals autosol ra 99c fast flow 2 solder wire warton metals 99c asol ra 2 12 500g warton metals autosol 99c ra is a high purity tincopper alloy solder with a no clean rosin activated flux for both high speed soldering and manual soldering applicationsautosol ra provides efficient soldering on copper brass nickel and zinc including lamp components and sensitive electronics warton metals autosol ra 99c fast flow 2 solder wire 18swg 122mm 500g