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SolutionBentonite Solutions for Sealing, Foundry & Drilling

Bentonite-based mineral solutions for sealing barriers, foundry sand bonding, drilling mud, pelletizing, absorbent products and clumping litter.

Bentonite Solutions for Sealing, Foundry & Drilling
High swelling and sealing behavior

Sodium bentonite grades are selected for swelling, low-permeability and sealing applications.

Bonding and plasticity

Bentonite supports green strength and plasticity in foundry sand and pelletizing systems.

Rheology and suspension control

In slurry and mud systems, bentonite helps build viscosity, suspension and lubrication behavior.

Application Areas

Sealing and anti-seepage systems

Bentonite is used in applications where water swelling and low-permeability barrier behavior are required.

• Pond and lake sealing concepts

• Landfill or civil engineering barrier materials

• Powder or granule supply options

Foundry sand bonding

Bentonite supports sand mold bonding, green strength and plasticity in selected foundry systems.

• Consistent bonding behavior

• Controlled moisture response

• Suitable for foundry batch production

Drilling mud and slurry systems

Bentonite can help generate viscosity, carrying capacity and suspension in drilling and slurry applications.

• Mud viscosity support

• Suspension of cuttings or particles

• Particle-size options for dispersion

Cat litter, absorbents and pelletizing

Granular bentonite can be developed for clumping litter, absorbent products and agglomeration systems.

• Clumping and absorption focus

• Granule size selection

• Bulk, jumbo bag or retail packaging support

Recommended Mineral Portfolio 

Sodium Bentonite

Recommended for swelling, sealing, slurry viscosity and clumping performance requirements.

Calcium Bentonite

Useful in selected absorbent, carrier and formulation applications depending on required behavior.

Bentonite Granules

Granular formats for litter, absorbent, civil engineering or controlled handling applications.

Bentonite Powder

Powder grades for drilling mud, foundry sand, binders and formulation blending.

Why Choose Wancheng

Grade matching

Select grades by particle size, morphology, color, moisture and application behavior.

Sample-first support

Provide samples for formula screening, production trials and customer validation.

Custom packing

Support bags, jumbo bags and export-ready packaging according to purchasing needs.

Stable supply

Organize repeatable supply for B2B production, not one-time commodity trading.

Application

Request a suitable grade for your formula

Send your target application, required particle size, packaging demand and trial quantity. Wancheng will recommend a practical mineral grade for sample testing.