Borax Cone Flux

Kernowcraft Rocks & Gems Verified independent store

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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. The rough surface of the dish will grind off a little of the borax and it will mix with the water in the dampened dish to a good paste consistency ready to be painted onto the joint with a flux brush prior to soldering, ensuring that your solder flows where it should. Show more