Insulating - Boric Acid Powder

Boric Acid Powder - Insultaing
 
 
Use Boric Acid with Methylated Sprits (code C4357) to form a protective skin over pieces about to be soldered from fire stain. A traditional favourite with Jobbing/Repairer Jewellers and Silversmiths (this method will only work with 9 -18ct jewellery and silver).
 
 
How prepare and use…
 
  • Clean the piece as you would before soldering and assemble.
  • Mix with 1 litre of methylated sprits (code C4357/C4358) and 150g of Boric acid in a glass or polyurethane container, with a lid.
  • Depending on the size of the piece cover it entirely by dipping or brushing on a fine coating.
  • Heat all over with a torch to form a white coloured skin, this creates the protective barrier against fire stain.
  • Solder joins normally and clean the work as normal with acid (pickle code P5232) fire stain will be noticeably reduced.
 
Supplied: 1kg Tub
 
 
Insulating - Boric Acid Powder
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Boric Acid Powder
C4361
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17 In Stock
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£10.95
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