Built to Outlast the Competition
The overall quality and reliability of a stormwater attenuation tank systems hinges significantly on the performance of its liner — the critical barrier that prevents leakage, protects surrounding soil and safeguards groundwater quality. Enviroseal specialises in using high-density polyethylene (HDPE) and linear low-density polyethylene (LLDPE) liners because these materials deliver unmatched durability, resistance to environmental stressors and long-term cost efficiency. Their technical expertise in selecting, welding and installing these liners makes Enviroseal a leader in membrane-lined tank systems throughout the UK.
Why HDPE and LLDPE Are Industry-Leading Choices
HDPE and LLDPE liners are purpose-engineered to endure the toughest below-ground conditions. Both materials offer exceptional resistance to a wide range of chemicals, aggressive and acidic soils and ultraviolet (UV) degradation—common challenges faced in subterranean environments. Unlike traditional liner materials, HDPE and LLDPE retain their structural integrity over decades, even when exposed to freeze-thaw cycles and ground movement. Enviroseal’s experts conduct comprehensive site risk assessments before installation, carefully selecting the appropriate liner type tailored to the specific environmental and hydraulic demands of each project. This precise matching ensures that clients receive both superior safety and consistent performance, meeting or exceeding UK environmental and water management standards.
Precision Welding Ensures Watertight Seals
The installation of high-performance liners requires more than quality materials — it demands meticulous welding techniques to create watertight seals. Enviroseal employs highly skilled technicians equipped with state-of-the-art thermal welding equipment. Their multi-step welding process includes thermal fusion welding combined with rigorous pressure testing and vacuum checks to detect even the smallest leaks or weaknesses. This comprehensive quality assurance protocol guarantees that every seam is flawlessly sealed, providing long-term protection against water ingress and leakage. This careful attention to welding reduces the risk of costly repairs or environmental compliance breaches down the line, giving clients peace of mind in the system’s durability.
Superior Longevity with Minimal Maintenance
Once installed, HDPE and LLDPE liners require very little maintenance due to their inherent flexibility and robustness. They accommodate natural ground movements without cracking, splitting or losing effectiveness — a critical feature in regions subject to frost, freeze-thaw cycles or minor subsidence. Their durability translates into a system that reliably performs for decades without the need for frequent inspections or costly replacement schedules. For clients, this means significant savings in operational and maintenance costs over the lifetime of the attenuation system, making Enviroseal’s approach both economically and environmentally sustainable.
For further information or to discuss project requirements, please contact Enviroseal at 01695 228 626 or enquiries@enviroseal.co.uk.
