Bentonite
Sodium and calcium bentonite for drilling, foundry, and civil works.
Applications
Sodium bentonite performs as a viscosifier and filtration-control agent in water-based drilling fluids and as a binder in iron-ore pelletizing and green-sand foundry molding. Calcium and activated grades are supplied for civil slurry walls, tunneling, waterproofing, and industrial absorbents. Consistent montmorillonite content ensures stable rheology and gel strength across all applications.
Grades / Types
Key facts
Specifications
| Montmorillonite content | 85% min |
|---|---|
| Moisture | 10-13% max |
| Standard | API 13A / OCMA DFCP-4 |
| Fineness (wet screen, 200 mesh) | 4% max residue |
| Swelling index | 24 ml/2g min |
| Yield (API) | 90 bbl/MT min |
| API filtrate (fluid loss) | 15 ml max |
Packing & supply
25 kg multi-wall paper/PP bags, 1 MT jumbo (FIBC) bags, or bulk; palletized and shrink-wrapped for export.
Loading ports & markets
Documentation & compliance
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