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.
★★★★★ 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. ★★★★★ Rick & Art did a wonderful job on expanding our 1/4 acre pond to a 3/4 acre pond that did not hold water. They were very professional and lived up to their promises!Thank you!Marc B. ★★★★★ Had a great friendly experience with Ricardo while sharing my situation with him he as well shared, his professionalism expertise on the matter regarding my septic tank.Henry 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. ★★★★★ So I got screwed over by my 1st “pond expert”- terrible, can give name/info if needed . After great expense I finally did my research and consulted with several pond engineers and reputable businesses. I was advised My rocky landscape and poor soil would only hold water with an amazing bentonite seal or a thick liner with added protection. I consulted with all companies and received bids/estimates. I’m sure both would have worked but ultimately I did not want a rubber liner and all of the issues that go with it. Rick and his crew did the job “sculpting” my 1.5 acre lake as needed. They laid bentonite in blanket form, I ordered more than they recommended. They covered with 12 inches of soil, corrected the slopes etc. my pond is holding perfect, looks amazing. I am 100% satisfied with the service they have provided. Rick has become a friend and follows up frequently. Do yourself a favor and don’t go with anyone less. Im happy to discuss personally if u desire. This has worked for me.James W. ★★★★★ Great company! Professional quality work at a flat price! Highly recommend!Donnie B. ★★★★★ 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. ★★★★★ 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. ★★★★★ Very nice people to do business with. They showed when we made an appointment and have exactly what we need and provided help and advice for us. We will be back for sure!Tyler S.
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.