The benefits of Bentonite (GCL) for lining SuDs basins and ponds for environmental engineering

Stratec Ltd has over 40 years’ experience in supplying products and services to the Civil and Environmental Engineering and Construction industries.

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Geosynthetic Clay Liners (GCL’s) from Stratec, offer a wide range of benefits when used in Suds basins and ponds, providing an effective and sustainable solution.

Stratec’s GCL’s are composed of a layer of bentonite clay encapsulated between geotextile layers. This unique composition offers excellent waterproofing properties, ensuring the containment and retention of water within the basin or pond. This feature is particularly crucial for Suds systems that aim to manage and control stormwater runoff.

One of the primary advantages of Stratec’s GCL’s is their exceptional hydraulic performance. The bentonite clay within the liner swells upon contact with water, creating a highly impermeable barrier. This prevents the loss of water through seepage, reduces the risk of groundwater contamination, and enables efficient water storage. By effectively retaining water, GCL’s contribute to the overall sustainability of Suds basins and ponds, aiding in water conservation efforts.

GCL’s are easy to install, providing a cost-effective and time-efficient solution. Their lightweight nature simplifies transportation and handling, reducing labor and transportation costs. Additionally, GCL’s offer superior flexibility and adaptability, conforming to irregular surfaces and accommodating settlement and ground movement. This ensures the longevity and durability of Suds basins and ponds, minimizing the need for frequent repairs or maintenance.

GCL’s contribute to environmental sustainability through the utilisation of naturally occurring bentonite. Bentonite is a type of clay formed from volcanic ash and sedimentary rock, and its extraction and production have minimal ecological impact. This natural resource is abundant, renewable, and readily available, making it an environmentally friendly choice for Suds systems. Additionally, bentonite exhibits exceptional swelling and self-sealing properties, further enhancing the effectiveness of GCLs in preventing water loss and minimizing the risk of pollutants entering the environment.

In summary, the use of Geosynthetic Clay Liners in Suds basins and ponds provides numerous benefits. Their waterproofing capabilities, hydraulic performance, ease of installation, and utilization of naturally occurring bentonite contribute to efficient water management, cost-effectiveness, and environmental sustainability. By incorporating GCL’s into Suds systems, we can ensure the long-term viability and positive impact of these essential water management solutions.


Sam Brierley

Marketing Director

Businesses I have worked for

Midwest Contracting

Tower Group

Reflect Promotional Products

Acure Safety


Sam has been involved in over 6 SME’s since graduating in 2011, with a focus on creating effective marketing plans and ensuring the efficient carrying out of the plans to achieve the targets and goals consistently. Sam puts emphasis on being driven and results focused by eliminating and removing what holds us back so that results can be achieved.

Key Areas of Expertise

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Giles Clarke

Managing Director

Businesses I have worked for

Quin Global

Vola Global

Orca Hygiene

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Howdens, Hafele, B&Q, Headlam Group, Norboard, Likewise, Balfour Beatty, Bam Construction, RJ Mcleod, I&H Brown, Cala Homes and many more


Giles has been working with SME’s since graduating from school. Working throughout different areas of the business from sales and marketing development, sales and commercial management, operations, manufacturing and R&D to continually develop the business, delivering growth and company sustainability. Putting emphasis on targets, goals, and direction, to deliver the company strategy and develop its people and systems.

Key Areas of Expertise

  • Business Planning
  • Business Growth