Borax

Borax:

Borax is used as a base in flux when soldering jewellery metals such as gold or silver. It allows the molten solder to flow evenly over the joints. Borax is also a good flux for “pre-tinning” tungsten with zinc – for soft soldering to tungsten. Also used for forge welding flux, brazing flux and a constituent of arc welding flux. 7oz sold in 1kg.

Another great use for borax is preparing the crucible for melting by creating a glaze in it. This is how its done:

• Fill your brand new crucible halfway with Methylated spirits, allow it to soak into your crucible.
• Heat up your crucible ( be careful as the flame will be larger than usual due to the spirits) , then pour in around 2-4 heaped tablespoons of borax powder ( there might be some fluffy bits of borax flying around – this is normal)
• Concentrate your flame onto the powder until it starts becoming see-through glass gel.
• Swirl this glass around the crucible until it coats the whole inside & glazes the surface.
• Then its ready to use!

Always be careful when working with open flames, gas and metal- Safety First!!

 ( See our blog post with this link : https://www.capetools.co.za/how-to-prepare-a-crucible/)

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Due to the nature of these goods , we cannot guarantee the proper use after delivery and therefore the potential for improper storage or contamination once opened or applied, no returns or refunds will be accepted on used or incorrectly used products.