Product Details Borax Dishes are used with borax cones and are a traditional way of making your own flux for precious/non precious soldering. Pour a little water into your borax dish the residual water should be enough to form a paste. Grind down the cone on bottom of the dish using a round motion this will result a soldering flux paste to be formed. If your left with some flux don’t worry just add water and repeat the process to make more flux.
