Flux Components

A full selection of individual components for mixing your own flux recipes. We offer small and large bulk quantities of each ingredient.

Borax
Anhydrous Borax - a multi-purpose flux used to draw out impurities, keep your material liquefied for easy pouring and to clean your metals.
Assay Dense Soda Ash
Assay Dense Soda Ash - a multi-purpose assaying flux used for gold recovery from black sands and bench grinds. Also can be used as a flux thinner.
Assay Grade Fluorspar
Assay Fluorspar - used as an ingredient of assaying flux (or flux thinner) for melting or smelting gold and other precious metals.
Assay Potassium Carbonate
A ideal ingredient of assaying flux.
Boric Acid
Boric Acid - a multi-purpose flux used to draw out impurities, prevent fire-scale and deoxidize your material.
Assay Silica Flour/Sand
This product consists of ground silica flour and sand, low in moisture with unmatched fineness and a consistency of its particle size.
Manganese Dioxide
Used for smelting gold concentrates.