Bentonite Clay: Nature’s Most Versatile Industrial Mineral
Bentonite is more than just clay — it’s an industrial powerhouse used across a wide range of industries due to its unique swelling, binding, and absorption properties. Whether it’s for foundries, drilling fluids, agriculture, or cosmetics, bentonite delivers performance where it matters most.
What Is Bentonite?
Bentonite is a naturally occurring clay formed from the alteration of volcanic ash, primarily composed of the mineral montmorillonite. It comes in different types, the most common being:
Sodium Bentonite – High swelling, great water absorption
Calcium Bentonite – Low swelling, better for detox and pellet binding
Potassium Bentonite – Less common, used in specialized applications
Key Properties of Bentonite
High Swelling Capacity
Excellent Water Absorption
Superior Binding Strength
Thixotropic (Gel-forming) Behavior
Cation Exchange Capacity (CEC)
Thermal Stability in Some Grades
Top Industrial Uses of Bentonite
🔩 1. Foundry
Bentonite is a vital binder in green sand molds, helping shape and strengthen molds used in metal casting.
🛢️ 2. Drilling (Oil & Gas)
Sodium bentonite is used in drilling muds to lubricate drill bits, stabilize boreholes, and control pressure.
🌾 3. Agriculture
Used as a soil conditioner and animal feed binder, bentonite improves moisture retention and nutrient availability.
🧼 4. Cosmetics & Personal Care
Calcium bentonite is widely used in face masks, cleansers, and detox products for its gentle absorptive power.
🧱 5. Construction
Bentonite is used in waterproofing, slurry walls, and grouting to prevent water seepage and enhance sealing.
💊 6. Pharmaceuticals & Food
Used as a clarifying agent in beverages and a carrier in some drug delivery systems.
Typical Bentonite Specifications
| Parameter | Range |
|---|---|
| Swelling Capacity | 10–15 times original volume |
| Moisture Content | < 12% |
| Montmorillonite Content | 70–90% |
| pH | 8–10.5 |
| Fineness | 200–325 mesh available |
| Color | Off-white to grayish-brown |
Custom grades and particle sizes available for specific industries.
Why Choose Our Bentonite?
✅ Consistent quality
✅ Multiple grades (Sodium, Calcium)
✅ Bulk quantities & export-ready
✅ Custom packaging options
✅ Used by top industries globally
Packaging Options
25 kg/50 kg PP or kraft bags
1 MT jumbo bags
Bulk (loose or containerized)
📞 Need Industrial-Grade Bentonite? Let’s Connect!
We supply high-purity bentonite for multiple industries — foundry, drilling, agriculture, cosmetics, and more.
👉 Contact us now for samples, technical specs, and competitive pricing.
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