Flux Soldering Powder 99.9% pure 1kg / 1000g
Borax Direct
£18.99
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Flux powder Use for all precious metals, silver, gold and platinum group as well as all cupreous metals. Jeweller s and Silversmith s soldering flux: Prevents oxidisation of the solder and soldering area. Borax which is simple to use by mixing with water to a creamy consistency. Apply to the joint or area to be soldered / welded with a fine brush. Also coat the solder pallion or wire. Apply gentle heat to dry the paste which ensures the solder sticks and does not jump off and then solder as normal. Coating for crucibles prior to metal melting: New crucibles need to be glazed with borax before
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