PRODUCT DETAILS

Picking a geosynthetic clay liner is rarely the hard part. The hard part is figuring out if the bentonite core is the real sealing medium, if the liner fits the landfill system you are building, and if the supplier can actually support the job without turning the quote process into a slog.

That is where Longxiang New Materials stands out for buyers who need a geosynthetic clay product with factory backing, export experience, and engineering help instead of a thin product blurb.

Longxiang New Materials manufactures sodium bentonite-based GCLs to GB/T 27475-2011 and JG/T 193-2006.
Its GCLs use natural sodium bentonite as the sealing core and can be paired with geomembranes and geotextiles in composite landfill liner systems.
The company has 100+ employees, exports to 100+ countries, and handles custom RFQs rather than posting public pricing.

What Is a Geosynthetic Clay Liner?

A geosynthetic clay liner, often shortened to GCL liner, is a hydraulic barrier made by placing hydrated sodium bentonite between geotextile layers so the clay swells and forms a very low-permeability barrier. In landfill work, that swelling behavior is the whole point because it helps create a tight clay liner layer without needing a thick compacted soil buildout.

Longxiang New Materials produces sodium bentonite-based GCLs that meet GB/T 27475-2011 and JG/T 193-2006. The sealing medium is natural sodium bentonite, not a generic clay fill, which matters because the barrier function depends on bentonite hydration and swelling.

A GCL is a hydraulic barrier.
Natural sodium bentonite is the core sealing material here.

How GCLs Work in Landfill Applications

In a landfill liner system, a geosynthetic clay liner works properly when it hydrates under the right confining stress, because the bentonite needs both moisture and compression to build the low-permeability layer the design expects. That is why application fit matters as much as the product sheet.

Typical placements include landfill base liners, closure caps, and side slopes, where the liner helps prevent leachate leakage into surrounding soil and groundwater. Used correctly, a geosynthetic clay layer acts as one part of a larger containment system rather than a standalone fix.

Longxiang's Factory-Direct GCL Products and Specifications

Longxiang New Materials is a factory-direct manufacturer with 100+ employees and exports to 100+ countries, giving project buyers a supplier profile that is built around large-order manufacturing and international shipment support. Its main product platform also shows a broad geosynthetics lineup, which matters when a landfill liner package includes more than one material.

The company’s GCL products meet the same two Chinese standards already noted above, and it offers thickness and coupling options tailored to project needs rather than forcing every buyer into one stock format. There is no posted public price list, but custom RFQs and engineering support are available through its FAQ and contact process, which is common for project-based materials with job-specific specs.

No public pricing is listed.
Custom RFQs are available for project-specific builds.

Bentonite Core and Geotextile Components

At the material level, Longxiang’s GCL structure centers on natural sodium bentonite as the clay sealing medium, held within geotextile components that support installation and containment performance. That core choice is a practical distinction because a geosynthetic clay liner depends on bentonite swelling, not just bulk filler weight.

The product range also includes composite options with geomembranes and geotextiles for landfill liner assemblies, which is useful when the design team wants fewer supplier handoffs between barrier and protection layers. That one-stop coverage is a real advantage, though it also means buyers still need to specify exactly how each layer will function in the full containment stack.

Compliance with Global Landfill Liner Regulations

For U.S. municipal solid waste landfill projects, 40 CFR 258.40 sets the basic expectation for composite liner systems, including an upper flexible membrane liner and a lower compacted soil component. A geosynthetic clay liner is typically used within a broader landfill liner design that also includes geomembranes and drainage elements, not as a shortcut around the full system requirement.

Longxiang’s landfill system guidance notes that HDPE geomembrane thickness in liner applications typically runs from 0.75 mm to 3.0 mm, while its own geomembrane offering spans 0.3 mm to 3.0 mm, with 1.5 mm presented as a common recommendation for landfill use in its leachate control article. That range matters because the GCL liner and geomembrane need to work together as a composite barrier, not as disconnected materials bought from separate catalogs.

Leachate collection depth is regulated below 30 cm to protect liner integrity, which is one more reason the barrier layer, drainage design, and protection layers need to be specified as a package. A clay liner can help seal, but the whole system is what keeps hydraulic pressure from pushing performance off target.

How Longxiang Supports Composite Liner Systems

Longxiang sells geomembranes and geotextiles alongside GCLs, which makes it easier to source the main barrier and cushioning layers from one manufacturer when building a composite landfill liner. That can simplify coordination, especially for export jobs where fewer suppliers usually means fewer shipping and document headaches.

Engineering guidance is available for selecting the proper GCL and related components so the product choice matches the actual landfill application. The catch, as with any factory-direct order, is that buyers need to come in with clear site conditions, target specs, and installation intent or the quote will stay too general to be useful.

Market Trends and Advantages of Choosing Longxiang GCLs

The geosynthetic clay market is not a niche corner anymore. Fortune Business Insights values the global GCL market at USD 523.2 million in 2025 and projects it to reach USD 810.9 million by 2034, with a 5.1% CAGR over that stretch.

Landfill applications hold the largest share at 38.6% in 2025, which lines up with why buyers spend so much time comparing bentonite barriers, geomembranes, and drainage layers before signing off on a system. In that setting, Longxiang’s appeal is pretty straightforward: cost-effective factory-direct supply, broad product coverage, and a shipping footprint that already reaches 100+ countries.

The market reached USD 523.2 million in 2025.
Landfill use held 38.6% of the market in 2025.

Benefits of Factory-Direct Purchasing

Buying direct from the factory cuts out middlemen markup, which is often the first reason contractors and importers start looking at manufacturers like Longxiang New Materials. It also keeps quality control closer to the production line, where QA and compliance paperwork are generated instead of passed along through a reseller chain.

There is also a practical upside for engineered projects: access to specification documentation and product-matching support from the same source handling the order. That does not remove the need for buyer-side review, but it usually makes submittals and revisions less messy.

Ordering Process and Engineering Support

The buying process here is built around custom RFQs, technical support, and project consultation, not click-to-cart ordering. Longxiang also publishes a civil geosynthetics selection guide to help buyers match products to project conditions, which is useful when the question is not just “need a GCL” but “need the right barrier package for this site.”

For landfill liner work, quote accuracy depends on sharing technical specs, application details, and the intended system layout early. That can include the barrier role, adjacent layers, installation condition, and any project compliance needs the order has to meet.

How to Request a Quote and Get Project Assistance

The RFQ path is simple: contact Longxiang through its website channels, submit the project details, and ask for a tailored quote based on the needed specifications and application. Buyers who provide a loose description usually get a loose answer, so the more precise the technical brief, the better the quote and the faster the back-and-forth.

Consultation is available for geosynthetics selection and system design support, which is valuable if the job needs a GCL liner integrated with geomembranes, geotextiles, or drainage products. That support is a strong part of the offering, though it works best for buyers who already know their project constraints and approval path.

Competitor Snapshot

Longxiang New Materials sits in a crowded field, and any serious B2B buyer is going to compare alternatives before sending a purchase order. The closest overlap comes from bpmgeosynthetic, sigmageosynthetics, jrxgeo, yfgeosynthetics, glgeosynthetics, geosyntheticsmanufacturer, synhens, and geosynsource, all of which sell broad geosynthetics lines that touch the same landfill, drainage, slope, and civil engineering jobs.

Tensarcorp overlaps more on soil reinforcement and road applications, while Layfield Group is a major name in geomembrane and environmental containment categories that compete for some of the same project budgets. The honest difference with Longxiang is not that it is alone in this space, but that it combines GCLs, geomembranes, geotextiles, export experience, and RFQ-based engineering support in one factory-direct setup, while still carrying the usual limitation of custom-quote purchasing instead of instant public pricing.

FAQ

Does Longxiang New Materials publish GCL prices online?

No. Longxiang handles GCL pricing through custom RFQs, which makes sense for project materials where thickness, coupling, and application details change the quote.

What information should I send for a Longxiang GCL quote?

Send the technical specs, application details, and the intended landfill liner or containment system setup. Clear project information makes the quote more accurate and shortens the revision cycle.

Can Longxiang supply more than just the geosynthetic clay liner?

Yes. Longxiang offers GCLs alongside geomembranes and geotextiles, which helps when a project needs a composite liner package from one source.

Is a geosynthetic clay liner used alone in landfill construction?

Usually no. In landfill work, a geosynthetic clay liner is commonly paired with geomembranes and leachate collection layers as part of a full hydraulic barrier system.

Why does bentonite type matter in a GCL liner?

Because the barrier function comes from swelling and low permeability after hydration. Natural sodium bentonite is used when the liner needs that sealing behavior rather than simple clay bulk.

Conclusion

If you are choosing between GCL suppliers, start with the project itself. Confirm the barrier role, the composite liner stack, the approval standard, and how much engineering help you need before you compare catalogs.

Longxiang New Materials makes the most sense for buyers who want factory-direct sourcing, natural sodium bentonite GCL construction, composite system compatibility, and export-ready support from one supplier. If your team also wants public list pricing or a simple off-the-shelf purchase path, that is the tradeoff to weigh before sending the RFQ.