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Refining Flux

A full line of pre-mixed fluxes ready to use for fire assaying and refining precious metals. Our pre-mixed flux recipes are pre-measured and ready to be used! Add them to your melt to draw out impurities and refine your metals.

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  • Standard Pre-Mixed Refining Flux
    An all purpose pre-mixed refining flux containing Anhydrous Borax, Soda Ash and a bit of Silica Sand. Excellent for refining silver and copper!
  • Hank Chapman Flux
    A great pre-mixed refining flux containing Anhydrous Borax, Soda Ash and a bit of Silica Sand. Excellent for refining gold, black sands, and ore concentrates! Use with our Chapman Flux Thinner for optimal results.
  • Chapman Flux Thinner
    Use this flux thinner in combination with our Hank Chapman's Flux to help keep your material a nice consistency for easier pouring.