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.
★★★★★ Lonestar GTC materials was great to work with. I had bentonite delivered for my pond. They communicated every step, very good pricing and friendly. I highly recommend them. Even a few week after they delivered they helped me out when they didn’t have to. If you need bentonite these are the right people.Byron S. ★★★★★ Ric and Alex did a great job applying bentonite to our pond. Their pricing was favorable, communication excellent and performance thorough, timely and punctual. They were transparent in their bidding and possible add-ons if hammering was required. It was and their surcharge was very reasonable. Their operator was very professional and an expert on the machinery. Highly recommend them for any pond improvements anyone may require.George B. ★★★★★ 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. ★★★★★ I needed some Bentonite for a small project. I had trouble locating what I needed until I called Lonestar. They started working with me on Saturday morning and getting me all the information I needed for a load on Monday. They helped me get the amount of material I needed and made the process very easy. Super nice staff that helped me with payment and Rick got me loaded up. Great folksAll around. Highly recommend. Give them a ring and let them get you fixed up!Jason D. ★★★★★ I have had 4 other pond builders out to a location in the hill country of desired 1ac pond. All 4 were ready to start escavation without researching soil content, collection potential, or if a well would be needed to supplement water supply. Rick came out several times and brought with him an experienced excavation operator. He took soil samples which he tested, and lasered elevations. His bid was reasonable and in line with others. But after his research we decided that this project was not a good idea. He saved me from a bad experience. But if I was going to proceed he would have been my only choice to proceed with out of the 5 pond contractors that were interviewed.jerry H. ★★★★★ 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. ★★★★★ The product appears to function as announced for my pond. The results where very very pleasing. Quick service along with great customer service and they followed through with a timely delivery.Tayde L. ★★★★★ Arthur Mendez and Ricardo Arzac are super individuals. They are so easy to talk to and are willing to take the time to listen to your problems. Both are extremely knowledgeable. I met Ricardo when I picked up a load of bentonite in Bulverde. I know he was busy, but he took the time to study some pictures I had and offer several possibilities to approach my issue. Talk to them once and you will be amazed. You can't go wrong!!Richmond E. ★★★★★ 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. ★★★★★ "I can't recommend them enough! Rick went above and beyond to help me and treated me with honesty, respect, and kindness from start to finish. They even did me a huge favor that they didn't have to do, and I truly appreciate it. It's hard to find people who genuinely care about their customers like this. I'll definitely be coming back and recommending them to my family and friends. Thank you for the outstanding service!"Will be doing another review with photosEzequiel A.
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.