Long-term waterproofing of tunnels

Tunnels are constantly exposed to groundwater, temperature fluctuations and other extreme environmental influences. Reliable waterproof protection is therefore essential for both structural safety and infrastructure longevity. For these applications, Liquid Rubber offers the ideal solution: BelowGrade.

Extend the life of your tunnel structures and contribute to sustainable infrastructure with Liquid Rubber's reliable and environmentally friendly sealing systems.

Liquid protection in demanding environments

The two-component system of Liquid Rubber BelowGrade has been specially developed for below-ground level applications, such as tunnels and subways. The product forms a seamless, permanently flexible barrier that adheres effortlessly to concrete and other common building materials - even on complex shapes and details.

Liquid Rubber BelowGrade contains no toxic substances, making it ideally suited for projects where a park, roof garden or natural environment will be built on top after finishing. Flora and fauna remain fully protected, without compromising environmental quality.

Liquid protection in demanding tunnels
Why professionals choose Liquid Rubber

Your benefits with Liquid Rubber BelowGrade

Liquid Rubber BelowGrade and SprayGrade

Liquid Rubber BelowGrade is a 2-component system used exclusively by certified application partners can be applied. The product is not UV-resistant and is therefore applied to areas where no exposure to sunlight occurs - for example, below ground level or in applications on the inside of buildings.

Liquid Rubber BelowGrade is highly elastic, vapour-proof, air- and watertight and adheres to virtually any substrate, making it a reliable solution for connections and transitions even under the harshest conditions.

References of waterproofing projects

Curious about what situations our products are used in?
Take a look at our portfolio of various projects.
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Getting started with Liquid Rubber?

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A solution for every project

See our other applications

  • Waterproofing

    Liquid Rubber coatings are used for applications such as bridge decks, parking decks, roofs, seams, structural penetrations, and tunnels. They provide a durable, flexible, and seamless waterproof membrane.

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    Air barrier sealing

    Airtight construction is essential for an energy-efficient building and is a key component of passive building design. Liquid Rubber's eco-friendly coatings provide a completely airtight seal, directly contributing to sustainable and energy-efficient construction.

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    Protection

    Liquid Rubber products are resistant to various harsh chemicals. Thanks to their excellent adhesion, they form a complete barrier that prevents external factors—such as humidity (corrosion) and harmful chemicals—from damaging the underlying substrate.

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    Liquid Rubber Europe is the European partner of the Liquid Rubber organisation. Liquid Rubber is (partly) produced and distributed in the Netherlands.

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