|Zircon is a mineral found in heavy mineral sand deposits. Selecting the best quality available with minimum of contaminants and consistency of chemistry is paramount to the investment casting market.
For high quality investment casting, its premium grade chemistry means that it has low impurities and high refractoriness. This gives low reactivity and dimensional stability.
Careful processing gives particle size consistency of zircon sand and flour producing a controlled reliable slurry, strong shell interface and better quality castings.
Zircon—inert to most alloys, highly refractory at cast temperatures, compatible with silicia sol binders, producing manageable slurries, good cast parts, easy separation and minimum of finishing.
Slurry parametres—viscosities, wettability, plate weight, pH, bacteriological resistance and slurry life are all monitored & measured in advance of despatch of material.
Batch to batch consistency is key to slurry property reproducibility.
At Mineral and Chemical Services we have specially developed a range of calcined Zircon Prime Grade products for the investment casting process.
These products are compatible with many different binder systems.
Zircon Prime Flour –200
A refractory flour especially suitable as the prime dip coat filler with silica sols.
Particle size is closely controlled at less than 75 microns. Specially produced for use in the investment casting industry. High temperature calcination promotes resistance to bacteriological attack and increases slurry life.
Zircon Prime Flour 325
A finer flour used when a higher viscosity prime slurry is required. Or when zircon is needed for the secondary coats.
Particle size is closely controlled at less than 53 microns. Specially produced for use in the investment casting industry. High temperature calcination promotes resistance to bacteriological attack and increases slurry life
Zircon Prime Sand Calcined
A calcined zircon sand which is often used as the prime stucco.
Recommended for application with the zircon prime coat.
Technical and material safety data sheets are freely available.