Product Category: Mining Chemicals / Drilling & Industrial Minerals
Chemical Type: Sodium Bentonite Clay
Primary Mineral: Montmorillonite
Appearance: Fine cream, grey or off-white powder
Product Overview
Sodium Bentonite is a naturally occurring swelling clay rich in montmorillonite.
When mixed with water, high-quality Sodium Bentonite absorbs water, expands and forms a thixotropic suspension or gel.
These properties make it particularly valuable in drilling fluids, civil engineering, foundries, sealing systems and selected mining applications.
Typical Functional Characteristics
| Property | Typical Reference |
| SKU | MCS-S10 |
| Primary Mineral | Montmorillonite |
| Appearance | Fine powder |
| Character | Swelling clay |
| Water Behaviour | Hydrates and expands |
| Rheology | Thixotropic |
| Swell Index | Grade/application dependent |
| Main Function | Rheology control / sealing / suspension |
Sodium bentonite’s ability to swell in water and form thixotropic slurries is central to its use in drilling and construction fluids.
Applications
- Mining drilling fluids
- Exploration drilling
- Oil and gas drilling
- Horizontal directional drilling
- Borehole stabilisation
- Foundry sands
- Civil-engineering slurry walls
- Dam and pond sealing
- Geosynthetic clay liners
- Binder applications
- Pelletisation
Key Benefits
- Strong water absorption
- Swelling capacity
- Excellent suspension properties
- Thixotropic rheology
- Effective sealing characteristics
- Useful borehole stabilisation
Grade Note
Bentonite performance varies considerably between deposits and grades.
Drilling customers may require compliance with specific API rheology, yield and filtration requirements. Those values should only be published once confirmed from the actual supplier specification.
Storage
Store dry and protect from moisture prior to use.
