We can supply a full range of Clay Graphite and Silicon Carbide Crucibles which are now used extensively in the Gold Mining and Foundry industries. We continue to receive excellent results regarding lifespan and can guarantee superior quality and reliable supply. Foundry Crucibles are used for bronze, steel, cast iron, aluminium and copper based alloys or in the Mining Industry for molten gold.

New bonding agents and modern manufacturing technology together with the rigorous applications of Quality Assurance procedures insure a crucible of the highest quality with a performance to match the most demanding requirements.

We manufacture a unique product – RTZ Washcoat – used extensively to extend crucible life, protect refractory from chemical erosion and acts as a releasing agent on gold moulds.

RTZ is also used on ceramic fibre to contain airborne particles, and as a heat reflector thus making the heating process more efficient and safer.

Crucible Sizing Charts

Standard Sizes

Larger Sizes

RTZ Washcoat

Clay Graphite Crucibles

Various Crucibles

99% High Alumina Crucibles

Assay Crucibles

Jewellery Crucibles

Graphite Crucible - Type 2 a

Assay Crucibles

Mathews Industrial Products supplies a wide range of Australian manufactured high performance, multi-use Fire Assay Crucibles to clients throughout the Australian and International marketplace.

Our Crucibles give Longer Life, Faster Melting, Consistent Melting and Exceptional Resistance to violent Changes of Temperature.

Various shapes and sizes are available ex stock in sizes 20, 30, 40, 50 and 65 gram suitable for the multi loading systems. Special designs can be produced to meet individual specifications. Crucibles will be packaged in wooden crates or cardboard cartons ready for export.

A range of Specialty Ceramic Shapes can be made on request.

RTZ Washcoat

RTZ WASHCOAT : A zircon based refractory coating widely used throughout the mining, foundry and engineering industries, in refractory situations where extended life and added protection is desired.

Crucibles : Crucible erosion can be greatly reduced by evenly coating the inside and outside of each crucible with RTZ Washcoat prior to use. RTZ Washcoat assists in preventing Black Spot i.e. Carbon Pick up from Clay Graphite crucibles thus preventing staining on gold bars.

Furnaces: RTZ Washcoat protects and increases the life of insulation materials in furnaces. Brickwork can also be protected from chemical and slag attack by brushing on RTZ.

Moulds: Because of its non-stick properties, RTZ Washcoat works exceptionally well as a releasing agent on gold moulds. Gold bars slip out easily, requiring little cleaning.

To find out how RTZ Washcoat can help you, please call our sales office and we can send additional information.