A good all-purpose flux which will allow solder to adhere to metal Works well on Copper, and Tin. Not recommended for Aluminum and Magnesium A combination of 1/3 ruby fluid and 2/3 water is an effective dip for removing debris from a copper soldering tip 6pcs pint sized bottles NOTE: WE ARE UNABLE TO SHIP LIQUID FLUX VIA ANY EXPEDITED OPTION AS WELL AS INTERNATIONALLY
