Ashapura Sodium Bentonite is a naturally occurring swelling clay primarily composed of montmorillonite. Its excellent ability to absorb water and form a stable gel makes it a highly useful material for drilling, construction, foundry, and other industrial applications.

Sodium Bentonite is particularly valued for its high swelling capacity, strong gel formation, viscosity-building ability, and water-retention properties. When dispersed in water, it forms a viscous suspension that can help carry suspended particles and control fluid loss.

In the drilling industry, Sodium Bentonite is widely used as a key component of drilling mud. It helps increase drilling-fluid viscosity, suspend drill cuttings, stabilize boreholes, and reduce fluid loss into permeable formations.

In civil engineering and construction, it is used for piling, diaphragm walls, slurry walls, tunneling, waterproofing, soil sealing, and other ground-engineering applications.

It is also commonly used in foundry sand as a binder, where its swelling and binding properties help improve mould strength and stability.

The exact performance of Sodium Bentonite depends on its montmorillonite content, swelling index, viscosity, moisture, particle size, and other technical properties. Therefore, customers should select the appropriate grade according to their specific application.

Key Features

• Natural Sodium Bentonite
• High Swelling Capacity
• Excellent Water Absorption
• Strong Gel Formation
• Good Viscosity Development
• Excellent Suspension Properties
• Effective Fluid-Loss Control
• Suitable for Drilling Fluids
• Useful in Foundry Applications
• Suitable for Civil Engineering & Construction

Applications / Uses

1. Drilling Fluids

One of the primary applications of Sodium Bentonite is drilling mud.

Used in:

• Water-Well Drilling
• Oil & Gas Drilling
• Geothermal Drilling
• Horizontal Directional Drilling
• Borehole Drilling
• Drilling Mud Formulations

Functions

• Increases Mud Viscosity
• Suspends Drill Cuttings
• Helps Stabilize Boreholes
• Controls Fluid Loss
• Improves Drilling Fluid Performance

2. Civil Engineering & Construction

Sodium Bentonite is widely used in:

• Piling
• Diaphragm Walls
• Slurry Walls
• Tunneling
• Excavation Support
• Soil Sealing
• Waterproofing
• Ground Engineering

Its ability to swell and form a low-permeability gel makes it useful in selected groundwater-control and soil-sealing applications.

3. Foundry Industry

Used as a binder in green sand casting.

Applications include:

• Iron Foundries
• Steel Foundries
• Aluminium Casting
• Metal Casting
• Green Sand Moulding

It helps improve:

• Mould Strength
• Sand Cohesion
• Mould Stability
• Reusability of Foundry Sand

4. Waterproofing & Sealing

Suitable Sodium Bentonite products are used in:

• Bentonite Waterproofing Systems
• Soil Sealing
• Pond & Lagoon Lining
• Landfill Liner Systems
• Groundwater Barrier Systems
• Geosynthetic Clay Liners (GCL)

5. Cat Litter

High-swelling Sodium Bentonite is widely used in:

• Clumping Cat Litter
• Pet Waste Absorbents
• Odor-Control Systems

Its ability to absorb moisture and form clumps makes it particularly suitable for this application.

6. Water & Wastewater Applications

Depending on the grade:

• Water Clarification
• Wastewater Treatment
• Sludge Conditioning
• Adsorption Applications
• Industrial Water Treatment

7. Agriculture

Suitable grades may be used for:

• Soil Conditioning
• Moisture Retention
• Fertilizer Granulation
• Carrier Material
• Soil Amendment

Agricultural applications should use only products specifically supplied and approved for that purpose.