HIGH QUALITY SOLDERING FLUX: Auroflux is a premium soldering fluid specially formulated for use with gold and silver. PREVENTS OXIDATION: Helps keep metal surfaces clean and free from oxides during the soldering process for cleaner, stronger joins. VERSATILE USE: Also suitable for soldering other metals such as copper, making it a versatile addition to any jeweller's toolkit. EASY APPLICATION: Paint directly onto the join, drop onto the join, or decant into a smaller squeeze bottle for more precise application. GENEROUS 250ML VOLUME: Each bottle contains 250ml of solder flux, providing ample supply for numerous soldering projects., Manufacturer: Maddisons Of Durham