The GOAT Liquid Grommet – Airtight & Flexible Sealant (Box of 6 310ml mastic tubes)
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Product Collection: The Goat
Application: Mastic Gun
Liquid Airtight Grommet: The Future of Airtight Sealing
Welcome to the revolution in building airtightness. Say goodbye to outdated, rigid plastic grommets and embrace the superior performance and flexibility of our Liquid Airtight Grommet! At Intelligent Membranes, we’ve developed the ultimate solution for airtight sealing, ensuring your building is energy-efficient, airtight, and future-proof. Our Liquid Airtight Grommet is a game-changer in the industry, providing an unparalleled alternative to traditional grommets for sealing penetrations around pipes, cables, and conduits.
Why Choose Our Liquid Airtight Grommet?
- Flexibility Like Never Before
Traditional plastic grommets are limited in shape and size, often leading to awkward fits and compromised seals. Our Liquid Airtight Grommet adapts seamlessly to any size or shape, filling every nook and cranny to create a perfect, customized airtight seal. No matter how irregular the opening, our liquid grommet flows and forms an impenetrable barrier where plastic grommets fall short. - Effortless Application
Forget about fiddling with rigid grommets, cutting, or resizing them to fit. The Liquid Airtight Grommet can be applied in seconds, with a cartridge gun. It’s quick, hassle-free, and bonds directly to the building fabric, creating a seamless, airtight layer. Whether you’re working with timber, brick, or concrete, our solution provides an airtight seal that traditional grommets simply can’t match. - Superior Airtightness
We don’t just match the performance of plastic grommets—we surpass it. Our liquid-applied solution ensures complete airtightness by eliminating the potential for gaps or leaks. When cured, the Liquid Airtight Grommet forms a durable, flexible membrane that withstands building movement and weather conditions, maintaining a high-performance seal over time. - Total Versatility
Our Liquid Airtight Grommet is perfect for both new builds and retrofit projects. Whether you’re working on a Passivhaus project or simply looking to improve the energy efficiency of an existing building, this product is the ultimate solution. It can be used on a wide range of penetrations, including cables, pipes, ducts, and conduits, giving you one product that solves all your airtight sealing needs. - Energy Efficiency Redefined
By using our Liquid Airtight Grommet, you dramatically reduce air leakage, helping to keep your building warm in the winter and cool in the summer. This improves the overall energy efficiency of your project, reducing heating and cooling costs while lowering your carbon footprint. It’s a smart, sustainable choice for any modern construction.
How It Works
Our Liquid Airtight Grommet is applied directly over or around the penetration point using a cartridge gun. It adheres to the surface and, as it cures, forms a seamless, airtight barrier that expands and contracts with the building over time. It’s designed to withstand temperature changes, humidity, and building movement, ensuring long-lasting protection.
Applications
- Timber Frame Construction: Ideal for sealing penetrations in timber structures, maintaining airtightness without compromising breathability.
- Brick and Block Walls: Easily adheres to rough surfaces, forming a complete seal around pipes, cables, or conduits.
- Concrete: Provides exceptional adhesion to concrete surfaces, making it perfect for large-scale commercial or industrial projects.
- Retrofit Projects: Perfect for upgrading existing buildings to meet modern airtightness standards.
Why We’re Awesome
At Intelligent Membranes, we don’t just create products—we innovate to solve problems. Our Liquid Airtight Grommet is the result of years of research, testing, and a commitment to pushing the boundaries of airtight technology. We understand the demands of modern construction, and that’s why we’ve created a product that not only works better but makes your life easier.
With our Liquid Airtight Grommet, you’re not just sealing penetrations—you’re future-proofing your building. Whether you’re working on a cutting-edge Passivhaus build or simply upgrading an older property, this product will give you the airtight, energy-efficient results you need to succeed.
Ready to Make the Switch?
Ditch the rigid, outdated grommets and step into the future of airtightness with Liquid Airtight Grommet. Transform your building’s energy performance and airtightness with the most versatile, high-performance solution available.
It can be applied internally and externally.
VOC Free.
Good UV Resistance.
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Delivery
All delivery charges are included in the price of the products and are dependent on the products selected for purchase. This charge is based on delivery to mainland UK, excluding the Scottish Highlands & the Islands where additional shipping charges will apply. For more information read our delivery policy in full.
Intelligent Membranes do not offer a next day delivery service.
Intelligent Membranes aim for deliveries to be with the customer within 2 working days. During the festive period deliveries could take longer.
Orders placed before 12pm will be dispatched the same day, any orders placed after 12pm will be dispatched the following working day
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Returns
We, at Intelligent Membranes, would like you to be 100% satisfied with your purchase and our service. In the unfortunate event of any item being unsuitable or wrong, please read our returns policy in full.
Frequently Asked Questions (FAQ) – The GOAT Liquid Grommet
1. What is The GOAT Liquid Grommet used for?
The GOAT Liquid Grommet is a high-performance airtight and flexible sealant designed to seal service penetrations, pipework, and cables that pass through the building envelope. It replaces traditional grommets, tapes, and collars with a quicker, more reliable solution.
2. Is The GOAT suitable for Passivhaus projects?
Yes – The GOAT has been developed to support Passivhaus airtightness standards, delivering durable and flexible seals around awkward penetrations. It helps ensure a building achieves the airtightness levels required for Passivhaus certification and low-energy builds.
3. Can The GOAT be used in retrofit projects?
Absolutely. Retrofit projects often involve challenging junctions and penetrations where tapes or mechanical grommets fail. The GOAT provides a liquid-applied airtight seal that adapts to irregular surfaces, making it a perfect choice for deep retrofit and EnerPHit projects.
4. How does The GOAT support Net Zero construction?
By eliminating air leakage around service penetrations, The GOAT improves the building’s energy efficiency and reduces heat loss. This directly supports Net Zero goals by cutting operational carbon emissions and ensuring long-term building performance.
5. How do you apply The GOAT Liquid Grommet?
The GOAT comes in a 310ml mastic tube for easy application with a standard sealant gun. Simply apply generously around pipes, cables, or ducts, ensuring complete coverage. Once cured, it forms a permanent airtight and flexible seal.
6. What substrates will it adhere to?
The GOAT adheres to a wide variety of construction materials including brick, blockwork, concrete, timber, OSB, steel, and insulation boards.
7. How flexible is The GOAT once cured?
The GOAT has excellent flexibility and elongation, meaning it will move with the building as it naturally expands and contracts. This ensures airtightness and performance longevity over the lifetime of the building.
8. Is The GOAT VOC-free and environmentally friendly?
Yes – The GOAT is a water-based, VOC-free sealant, making it safe to use indoors and suitable for eco-conscious builders aiming for low-carbon and Net Zero building solutions.
9. How does The GOAT compare to traditional airtight grommets?
Unlike fixed-size airtight grommets, The GOAT adapts to any penetration size or shape. It’s quicker to install, more cost-effective, and ensures a long-lasting airtight seal without the risk of peeling or failure.
10. What size pack does The GOAT come in?
The GOAT is supplied in a box of 6 x 310ml mastic tubes, perfect for both small domestic projects and large-scale commercial airtightness installations.
👉 With The GOAT in your airtightness toolkit, you’ll achieve faster installs, tougher seals, and Passivhaus-ready performance – whether on a new build or retrofit journey to Net Zero.
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