VOLCLAY® Bentonite Soil Sealants

Using bentonite to create a soil liner

VOLCLAY bentonite soil sealants are granular and powder sodium bentonite that provides economical, low permeability soil liners for a wide variety of containment applications. When VOLCLAY bentonite soil sealants are mixed with soil and hydrated, they expand to fifteen times in volume, forming a mechanical bond with surrounding soils and filling the voids between the soil particles. This creates a barrier that effectively stops further seepage through the soil, and decreases the permeability of soil by several orders of magnitude. Bentonite can withstand desiccation, hydration and freeze-thaw cycling without losing its sealing ability.



    A containment solution for many applications

    VOLCLAY bentonite soil sealants can be utilized for a number of different applications including reservoirs, secondary containment, agricultural waste containment, ponds, slurry trenching, or wastewater treatment lagoons. Where there is erosion potential from run-off, inlet flow, aerators or other factors, the soil mixture should be protected by a cover layer.


    Features and benefits

    • High swelling capacity of VOLCLAY bentonite soil sealants, reduces amount is needed to lower the hydraulic conductivity of the onsite soils.
    • Offered in several formulations, allowing for use in a wider variety of applications.
    • With access to the largest bentonite reserves in the world, CETCO is able to provide the most consistent and highest quality soil sealants.