Industrial Minerals
Foundry & Refractories
Moulding sand, binders and high-temperature materials for casting operations.
The problem
Moulding sand has to hold a shape, vent the gas and strip cleanly. Change the sand or the bond and the scrap rate tells you before the lab does.
What we supply
Foundry-grade silica sand screened to an AFS number you specify, sodium-activated bentonite with green strength certified per lot, and refractory-grade materials for the hot end.
Choosing a grade
| What you are solving | What we would quote | Why |
|---|---|---|
| Green sand moulding | Silica XQ-Foundry + Bentonite XN-Foundry | AFS grade and bond together |
| Resin-bonded cores | Silica XQ-Foundry low LOI | Low fines, controlled pH |
| Refractory mixes | Quartz XQP-200, Bauxite | Thermal stability |
| Hot topping and insulation | Mica flakes XF-Fine | Insulating additive |
These are starting points, not prescriptions. Send your current material's data sheet and we will match it properly rather than guessing from a mesh number.
Minerals for foundry & refractories
3 of the minerals we supply end up in this industry. Here is what each one is actually doing once it is in the mix.
- Silica Sand — Moulding and core sand.
- Bentonite — Green sand bond; the property that holds the mould together before pouring.
- Quartz Powder — Refractory mixes and investment casting.
Silica Sand
Washed and graded quartz sand. Glass, foundry moulding and filtration.
Bentonite
Swelling montmorillonite clay. Binding, sealing and viscosity in foundry and drilling.
Quartz Powder
Micronised high-purity quartz. Hardness and chemical resistance in engineered surfaces.
Every one of these has its own page with the grade ladder, the typical chemistry and the physical properties. If you already know the mineral and need the numbers, go straight there.
What we will ask you
- AFS grain fineness number
- Green and dry strength targets
- Casting alloy
- Monthly tonnage and delivery ZIP
Four answers are enough for a quote and a sample. We do not need a meeting first.
What you get back
- A delivered price per tonne or per pound to your ZIP code, not an FOB India number you have to convert
- A free sample of the grade we recommend, shipped from the United States
- The typical analysis and, with the sample, the actual mill test certificate for that lot
- A safety data sheet in US format before the material arrives
- A lead time you can plan a production run around
Working in foundry & refractories?
Tell us the application and the tonnage. Quote and free sample back within one business day.