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    • What is Sodium Bentonite?

      Bentonite is primarily composed of clay mineral montmorillonite, a magnesium-aluminum silicate. Bentonite hydrates in fresh water and disperses to varying degrees, depending on the nature of the cations that are loosely held and exchangeable (High cation exchange capacity) The presence of exchangeable sodium ions enhances hydration and dispersion. Divalent cations such as calcium reduce the degree to which the individual platelets disperse, Bentonite is added to freshwater mud for use in one or more of the following purposes:

      1. Increase the borehole cleaning capability.
      2. Reduce filtration into the permeable formations.
      3. Form a thin low permeability filter cake.
      4. Promote borehole stability in poorly consolidated formations.
      5. Control loss of circulation.

      Bentonite has a specific gravity of 2.5 and a Mohs hardness of 1 to 1.5. It ranks second in quality only to barite as a drilling – fluid additive.

      Bentonite, Is mined primarily in South Dakota and Wyoming, Arizona, California, Colorado, Mississipi, Nevada, and Oregon. Major deposits outside the United States are in Argentina, Brazil, Cyprus, Germany, Greece, India, Italy, Mexico, and Turkey.

Uses of Sodium Bentonite

Pond Sealing

Water makes its way and seeps into the soil with ease when it is stored in an unlined pond. When sodium bentonite pond sealant is applied to the bottom of the pond, it can prevent water seepage most effectively. Sodium bentonite sealant forms a watertight shield between the soil and the water that prevents the loss of water within the pond.

Well Abandonment

Abandoned water wells need to be sealed properly; this is crucial to prevent contamination of the ground water. Abandoned water well acts as a direct conduit for contaminants to reach groundwater. In most states, it is a statutory requirement to properly decommission and seal the abandoned wells. Once ground water gets contaminated, the cleaning is not only expensive but complicated. Pond Sealer bentonite offers an easy solution for plugging any abandoned water well.

Landfill Liner

Due to its unique property of preventing seepage, sealer bentonite is also used as a lining agent at landfill sites. Landfill sites are full of toxic and unwanted material. Bentonite sealant effectively prevents toxic chemicals from leaching out in underground water streams and surrounding areas safeguarding the health of community members in the region.

Wastewater Lagoon Sealing

Wastewater treatment system consists of septic tank and lagoons. An improper or damaged lining of wastewater lagoons may cause seepage of wastewater into nearby water sources spoiling drinking water supply. This may put the health of the people in surrounding areas at risk. As an immediate and urgent remedy, pond sealer bentonite comes handy to prevent seepage’s and safeguard underground water sources.

Well Casing and Sealing

While water well is a reliable source of drinking water, sealing the space between the well annulus and the well casing is crucial. When unsealed, the well annulus could become a pathway for water seeping to the ground water below allowing contaminants to enter into the ground water source. That is why sealing a well casing is crucial. Bentonite clay along with cement is pumped into the annular space to fill up the space and seal well casing. In common parlance, this process is often called grouting.

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  • API Bentonite “Gel”

    Our Bentonite clay 200 mesh complies with API 13-A Section 9, specifications for drilling fluid materials. This type of Bentonite is mainly used for oil and gas drilling, deep water wells and in other applications where these special characteristics are required.

    Lone Star GTC, LLC is a Texas company based in San Antonio, TX with operations in Laredo and Eagle Pass, TX. Doing business in collaboration with a team of experts with over 50 years of experience in the process of extracting minerals, mining, and milling that allow us to guarantee the raw and milled material with API spec for our customer’s needs.

    Bentonite is a mineral that can be used in many industries given its unique chemical and physical properties. Lone Star GTC primarily supplies a product that is used as viscosity for drilling muds in the oil, gas, water and foundation industries.

    Some of our clients use our product for soap, detergent, animal feed, cosmetic, pharmaceutical, sealant, paint, ink, and as a clarifier of wine and juice

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  • Standard Bentonite “Gel”

    Our standard sodium bentonite is a 200 mesh product used in the elaboration of drilling fluids for water wells, foundations, general construction, trenches and other civil engineering applications.

    This product is just under API 13a section 9 Specifications

  • Sodium Bentonite

    Sodium bentonite for water leaks and pond sealer.

    Texas ranchers can use our sodium bentonite to mix and blend with soil to prevent water leaks and seal pond.

    Many other applications of our products include water cleaning treatment, emulsifier and use on the iron and steel foundry.

    This construction bentonite is a 200 mesh product used in the deep excavations and applications where cement is used, aqueducts, foundations, tunnels, dams, and general civil engineering projects.

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    Cat litter Hour cat litter has a tight clumping ability that produces a solid clump that is easily scooped away. Rapid Clumping:: since cats cover and scratch, our rapid clumping formula ensures lest dust and tracks around the house. Odor Control: Our cat litter is made of 100% bentonite which is a natural absorbent and we also offer various choices of natural scents for maximum odour control. Environmental friendly and Dust free: bentonite which is an inert compound eliminating all fine particles that avoid cleaning or breathing dust.

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  • What is Barite?

    Barite is a mineral composed of barium sulphate (BaSO4). It receives its name from the Greek word “barys” which means “heavy.” This name is in response to barite’s high specific gravity of 4.5, which is exceptional for a nonmetallic mineral. The high specific gravity of barite makes it suitable for a wide range of industrial, medical and manufacturing uses. Barite also serves as the principal ore of barium.

    Our barite is a natural barium sulphate designed to meet all the properties of drilling grade barite. Meets or exceeds all API requirements.


    Drilling grade Barite (BsSO4) 4.1 ~ 4.2 Specific Gravity is used to increase the weight of fluids. Barite or baryte is a mineral consisting of Barium Sulfate.

    Some 77% worldwide is used as a weighting agent for drilling fluids in oil and gas exploration to suppress high formation pressures and prevent blowouts. As a well is drilled, the bit passes through various formations, each with different characteristics. The deeper the hole, the more barite is needed as a percentage of the total mud mix. An additional benefit of barite is that it is non-magnetic and thus does not interfere with magnetic measurements taken in the borehole, either during logging-while-drilling or in separate drill hole logging.

    Barite used for drilling petroleum wells can be black, blue, brown or grey depending on the ore body. The barite is finely ground so that at least 97% of the material, by weight, can pass through a 200-mesh (75-μm) screen, and no more than 30%, by weight, can be less than 6 μm diameter. The ground barite also must be dense enough so that its specific gravity is 4.1 or greater, soft enough to not damage the bearings of a tricone drill bit, chemically inert, and containing no more than 250 milligrams per kilogram of soluble alkaline salts.

  • PackagingOur barite is available in super sacks of 3,000 Lbs. one and a half metric ton or in bulk pneumatic tank. 100 lb and 50 lb. paper bags can be custom ordered.