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Borax Cone and Tray

From the jewellery world rather than the model making world, a simple system for producing flux for brazing/soldering.

  • 113mm outer diameter
  • 24mm high
  • 93mm inner diameter
  • 15mm inner tray depth
  • 0.285kg


The ceramic dish must be thoroughly cleaned before use, any dirt could get into the joint that you are about to create and either be unsightly or make it weak.

Tip a small amount of water into the tray and then tip away the excess. The tray will be wet.

The cone of borax is then place in the tray and lightly ground by moving it around the tray with a light pressure.

A milky paste will form.

Price: approx 3.90 for the dish and 3 for a borax cone


Available at

See also: Tools.