TECHNIQUE™ Borax cones the most popular dried flux for soldering precious and non-precious metals.
Borax flux is a versatile and cost effective flux and is suitable for use with all solders.
How to use: Simply wet an unglazed ceramic dish (our borax dish is specifically designed for this purpose) by pouring water in and tipping away the excess, then rub your borax cone in a circular motion with some downward pressure.