Bentonite Pellets - Mikolit

For sealing of standpipe piezometers, monitoring wells and grouting of instrumentation.

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Bentonite Pellets - Mikolit
Bentonite Pellets - Mikolit


Borehole sealing pellets which ensure optimum performance, together with simple and efficient installation. Wyoming and European type Bentonites are generally used for such applications.


A high-swelling Bentonite finely ground and compressed into 6mm diameter rods. It is not chemically treated and is therefore safe for use in water wells.

Superior swelling properties  -  180 - 200% 
Very low permeability  -  < 10 - 12  m/s
Delayed swelling action  -  12 minutes


A blend of pure clay and 300% Bentonite finely ground and compressed into 6mm diameter rods to provide excellent swelling properties together with the environmental advantages of  pure clay.

Excellent swelling properties  - 50 - 70%
Low permeability  -  < 10 - 11  m/s
Delayed swelling action  -  15 minutes


A pure ‘Brunssum’ clay finely ground and compressed into 6mm diameter rods to provide a low permeability seal similar to ‘in-situ’ clays.

Swelling  properties  -  30 - 40% fresh water
Low permeability  -  < 10-10 m/s


A pre-formed pellet with a mix of bentonite and cement for increased strength. No grouting or mixing machines required. 


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Marton Geotechnical Services Ltd
Geotechnical Centre, Rougham Industrial Estate, Rougham, Bury St Edmunds, Suffolk IP30 9ND

Geotechnical Instrumentation | Groundwater Monitoring | Landfill Gas Extraction Venting Systems

Drilling: Site investigation, land remediation and water well construction.
Products: Geoscreen, Geofilter, Duroscreen, Bentonites, Filter media, Piezometers.

Groundwater: Monitoring, sampling remediation and control.
Products: Diver Dataloggers, Groundwater Monitoring Software.

Landfill Drainage: Collection and removal of leachate and methane gas.
Products: PE Pipework, Telescopic Duroscreen, Wellheads, Knockout Pots, Manifolds & Chambers.

Demco Rail Track Drainage, Sewer and Culvert Rehabilitation products.
Products: Terradrain, Terraline, Terrafilter, Terrapit.

Geothermal: Ground source heat installations.
Products: Geothermal loops, Geothermal Grouts, Geothermal Test Units.

Pumps: For use in environmental and civil engineering projects.
Products: Geopump, Posiflow, Geoskimmer, Geovac, ProPurge.

Fraste: Fraste hydraulic drilling rigs and accessories
Products: Fraste Drilling Rigs and Accessories, Multidrill Series, FS Series, Mito Series, Exploration Series