Sodium bentonite for pond sealing, reservoirs, lagoons, drilling, water treatment and industrial applications. Available in 50 lb bags, 3,000 lb super sacks and full truckload quantities.
Delivered quotes typically prepared within 36 hours.
Natural ClayLow-permeability sealing materialFlexible ApplicationFits irregular pond shapesBulk FormatsBags, super sacks and truckloadsProject GuidanceMaterial, freight and application support
NATIONWIDE FREIGHT
Bulk Bentonite Delivered Across the U.S.
We coordinate pallet, LTL and full-truckload shipments. Freight is quoted according to quantity, destination, unloading requirements and current carrier availability.
50 LBBags & PalletsFlexible handling for smaller orders and job sites.
3,000 LBSuper SacksEfficient bulk format for medium and large projects.
45,000 LBTruckloadsBest fit for large-volume and multi-truck projects.
★★★★★ With great hope that sodium bentonite will repair my leaky earthen dam, I reached out to Lonestar GTC Minerals. Their Customer Service, primarily Diego M., was extraordinary! He efficiently and professionally walked me through what I should/should not expect, purchasing options, material pricing and freight. He even PROACTIVELY checked the shipping status and reached out to me when he saw an erroneous entry in the freight tracking....said he would handle any problems if needed....who does that these days? Wonderful! If you are looking for SB, Lonestar GTC Materials is the place to buy.Danielle B. ★★★★★ Very professional group to work with. Everyone communicates well with you as a client and with each other. They also took photos along with texting updates which was helpful for documentation.Would highly recommend them.Gary R. ★★★★★ Professional advice on how to seal our pond. Product worked great.Highly recommended.Manuel C. ★★★★★ We recently teamed up with Lonestar Minerals to seal a pond for a customer of ours. We dealt with Rick and Art which shared with us the proper way to build and seal a pond. Rick's team did the bentonite application in about 1/2 the time it would have taken us to do it. The whole team at Lonestar was great ! Will do business again with them and would recommend to others without hesitation.SRB V. ★★★★★ Lonestar did a FANTASTIC job on my pond sealing. The application of material was very deliberate and reshaping of the pond will add a lot of surface area. Would highly recommend them and will be using them on my next pond!!!Hat C. ★★★★★ Working with Lonestar was a pleasure from the start to the finish of the project. Ricardo (Rick) came out to walk the area and discuss the best option, and provided a detailed estimate within a couple days of initial contact. Next was meeting Joseph and his crew that did the excavation and application of the Bentonite. The process moved really quickly considering the work involved, and the entire team was extremely personable and professional. Overall I was very pleased with the entire experience and would recommend Lonestar to any potential customer without hesitation.Chris P. ★★★★★ We purchased 3 truckloads of sodium bentonite from Lonestar, service was superb, price competitive, and most important the material quality was great! Our pond is holding water the way it is supposed to! I highly recommend Lonestar as your go to supplier!!Karla T. ★★★★★ Purchased 90,000 pounds of pond sealant bentonite. We applied to our pond as directed and achieved great results! Good service, friendly staff and highly recommended to everyone.Joaquin L. ★★★★★ Ricardo and the entire gang are top shelf! They definitely know their stuff and their customer service is second to none. I highly recommend them!!Scott W. ★★★★★ Lonestar Minerals provide excellent service and results for us. They sealed a leaking seasonal pond that now holds and is beautiful increasing the value of our property dramatically. Ric was great to work with, very responsive, and went out of his way to help us.Stephen J.
We’ve supplied bentonite for projects in:
Colorado
Florida
Alabama
Oklahoma
Arkansas
New York
California
Montana
Wyoming
Minnesota
North Dakota & South Dakota
Nebraska
Illinois
Nevada
Arizona
New Mexico
Indiana
Georgia
Alabama
Kentucky
North Carolina
PROJECT PLANNING
Tell Us About Your Project
Share the project dimensions, soil conditions, delivery location and estimated timeline. We will help determine an appropriate quantity and prepare a delivered-price quote.
From pond sealing and repair to water treatment, drilling and industrial minerals, choose the solution that matches your application or contact us for guidance.
POND SEALING
Bentonite Pond Sealer
Bulk sodium bentonite for dry or drainable ponds, reservoirs and other water-containment projects.
From material selection to freight coordination, Lonestar supports projects that need more than a product page and a checkout button.
60+ YearsMinerals and pond experienceBulk PricingCommercial quantities and truckloadsNationwide FreightDelivery coordination across the U.S.Multiple FormatsBags, super sacks and bulk loadsProject GuidanceQuantity, packaging and application supportIndustrial SupplyMinerals for multiple applications
POND REPAIR SERVICES
Need Help With a Leaking Pond?
If you are not sure whether bentonite, another treatment method, or a full repair service is the right next step, our team can review the project and recommend a practical path forward.
Pond leak reviewRepair guidanceMaterial + service supportLarge-project experience
Sodium bentonite is a naturally occurring swelling clay rich in montmorillonite. When hydrated and properly confined, it expands into pores and small pathways, helping create a low-permeability barrier.
That behavior makes bentonite useful far beyond pond sealing. Lonestar supplies mineral products for water containment, drilling, treatment and industrial applications.
Pond SealingLow-permeability liners for ponds, reservoirs and lagoons.
DrillingMineral products for drilling-fluid applications.
Water TreatmentClay blends for treatment and filtration processes.
Industrial UsesFoundry, construction and other mineral applications.
Need bulk material? Lonestar can help select the product format and coordinate freight from pallet quantities through full truckloads.