Bund Lining

Bund Lining: A Practical Guide to Containment Protection

Bund lining forms a sealed coating inside secondary containment structures to hold liquids safely and prevent leaks. It is often used in sites where oils, chemicals, fuels, or hazardous liquids are stored. We install bund linings to provide impermeable protection and reduce the risk of breakage by creating a barrier inside the bund that stops liquids escaping into the substrate.

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What Is a Bund and Why Does It Need Lining

A bund is a built barrier or basin around a storage vessel designed to catch leaks or overflows. Without proper lining, concrete or masonry bunds absorb moisture over time, develop cracks, and allow liquids to permeate. A bund lining system restores integrity by sealing the walls and floor.

 

Many commercial and industrial sites require bund lining to comply with environmental regulations and pollution control standards. The lining must be resistant to the specific liquids stored inside the vessel.

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How Bund Lining Works

Surface preparation: The bund’s interior is cleaned, any damaged concrete or cracks are repaired, and the surface is primed for coating.

 

Lining application: A suitable lining material is applied to form a continuous, impermeable layer. Materials can include epoxy, polyurethane, polyurea, or glass reinforced plastics.

 

Curing and testing: After the lining is cured, tests check for leaks and full coverage. The result is a seamless membrane that holds the liquid within the vessel, even under stress.

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Selecting the Right Lining Material

Choosing the correct product depends on:

 

• The type of liquid stored (oil, acid, solvent, water, etc.)

• Temperature, chemical aggression, and abrasion risk

• Movement or structural flexing in the bund

• Required life span and maintenance schedule

 

Each material, whether epoxy, GRP, or polyurea, has strengths and trade-offs. We guide clients through the choice of compatible lining based on their site conditions and storage profile.

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Benefits of Effective Bund Lining

Leak containment: The lining prevents liquids from reaching the ground, protecting soil and groundwater.

 

Reduced maintenance: A well-installed lining reduces the frequency of repair works.

 

Extended service life: The coating protects the underlying substrate from corrosive attack and physical wear.

 

Regulatory compliance: Many licensing, environmental, and health & safety rules require bunds to be impermeable and maintained.

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Typical Applications

Bund lining is used in many sectors:

• Fuel storage and petrol stations

• Chemical plants and processing facilities

• Water and wastewater treatment works

• Utilities and electrical substations

• Any site that stores hazardous or environmentally sensitive liquids

 

In Wales, England, and beyond, bund linings are often part of upgrades to older bunds to meet modern standards.

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Why Choose Us

We bring experience in designing and installing bund lining systems in industrial and commercial settings. We assess your site conditions, recommend a suitable lining, and carry out full installation and testing. Our aim is to deliver long-lasting protection with minimal down

time.

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Maintenance and Inspection

After installation, regular inspections help spot wear, damage, or movement. Minor defects can be repaired before they turn into leaks. Monitoring the lining’s condition helps maintain containment and avoid environmental penalties.

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Next Step

If your site needs a robust bund lining solution, we can help. Contact us with details of the vessel, stored liquid type, and bund condition. We’ll work with you to develop a lining plan that gives you confidence in your containment system.