Soudal Expanding Foams

Discover our comprehensive range of Soudal PU Expanding Foams. Explore the versatile Soudafoam Range, the Patented Genius Gun Range, robust SoudaBond PU Foam Adhesives, and a variety of ancillary products designed to meet all your sealing and bonding needs.

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Browse Expanding Foams

Gap Filler Expanding Foam


Window & Door Expanding Foam

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PU Foam Adhesive

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Sprayable Insulation Foam


Fire Rated Expanding Foam


Soudal SOUDAFOAM Range

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Soudal GENIUS GUN Range

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Soudal SOUDABOND Range

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Soudal COMPACT Foam Range

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Foam Guns & Cleaners


Expanding Foam - Full Range


Expanding foam, also known as polyurethane foam, is a versatile material widely used in construction and home improvement projects. Soudal, a leading brand in the industry, offers a comprehensive range of expanding foam products designed to meet various needs. These foams are known for their excellent adhesive properties, thermal and acoustic insulation, and ease of use.

Whether you're filling gaps, insulating walls, sealing around windows and doors, or adhering materials, Soudal's expanding foam solutions provide efficient and durable results. The product range includes specific formulations for different applications, ensuring that both professionals and DIY enthusiasts can find the perfect foam for their projects.

Expanding foam is a polyurethane-based product that comes in aerosol cans or larger pressurized containers. When applied, it expands upon contact with air, filling gaps, cracks, and cavities with a dense, insulating foam. The process involves the following steps:

  1. Application: The foam is sprayed or injected into the desired area using an applicator or nozzle. Some products feature a patented trigger mechanism, like Soudal's Genius Gun, for precise control.

  2. Expansion: Upon release, the foam begins to expand, often up to 30 times its original volume. This allows it to fill even the smallest gaps, ensuring a tight seal.

  3. Curing: The foam undergoes a curing process, typically taking a few hours to fully harden. During this time, it bonds to the surrounding surfaces, creating a strong, durable seal.

  4. Trimming and Finishing: Once cured, the excess foam can be trimmed with a knife or saw. The hardened foam can then be painted, plastered, or otherwise finished as needed.

Expanding foam is valued for its ability to provide excellent thermal and acoustic insulation, enhance structural integrity, and resist moisture.

It is used in a variety of applications, from filling gaps around windows and doors to insulating walls and roofs, making it an essential tool for builders and homeowners alike.

Expanding foam is an incredibly versatile product, suitable for a wide range of applications in both residential and commercial settings. Here are some common scenarios where expanding foam should be used:

  1. Gap Filling: Ideal for filling large gaps, cracks, and cavities in walls, ceilings, and floors. It prevents air drafts and enhances insulation.

  2. Sealing Windows and Doors: Provides an effective seal around window and door frames, improving energy efficiency by reducing heat loss and preventing draughts.

  3. Insulating Walls and Roofs: Expanding foam can be used to insulate cavity walls, attics, and roofs, contributing to better thermal performance of the building.

  4. Soundproofing: Due to its acoustic properties, expanding foam is effective in soundproofing rooms by filling gaps where sound might escape.

  5. Adhesive Applications: Certain formulations of expanding foam, like Soudal's PU Foam Adhesives, are used for bonding building materials such as plasterboard, insulation panels, and bricks.

  6. Fireproofing: Fire-rated expanding foams are used to seal joints and gaps in fire-resistant constructions, providing an essential barrier against smoke and fire.

  7. Moisture Barriers: Expanding foam can act as a moisture barrier, sealing out water in basements, around plumbing penetrations, and other areas susceptible to leaks.

  8. Repairs and Maintenance: Perfect for quick repairs, expanding foam can be used to fill holes and voids in various substrates, providing a durable and long-lasting fix.

The decision to use expanding foam should consider the specific requirements of the project, including the need for insulation, soundproofing, or fire resistance.

Always choose the right type of foam for the job to ensure optimal results.

The Soudal Gap Filler Product Range is specifically designed to tackle large gaps, cracks, and voids, offering high-volume yields and exceptional performance.

Key features of this range include high thermal and acoustic insulation properties, making it a versatile choice for various applications. Here’s an overview of the products within this range:

  1. Soudal Soudafoam 'Gap Filler' Expanding Foam: This product is perfect for filling large gaps and cavities with a substantial volume of foam, ensuring excellent insulation and soundproofing.

  2. Soudal Trade Gap Filler Expanding Foam: Tailored for professional use, this foam provides superior filling capabilities and adheres well to a wide range of substrates, including masonry, wood, and metal.

  3. Soudal Roof & Insulation Trade Expanding Foam: Designed specifically for roofing and insulation projects, this foam offers high thermal properties, effectively reducing heat loss and improving energy efficiency.

  4. Soudal Soudafoam 2K - Two-Component Fast Curing Expanding Foam: This two-component foam cures rapidly, making it ideal for projects requiring a quick turnaround. It provides robust sealing and insulation in minimal time.

  5. Soudal Soudafoam SMX - Environmentally Friendly Expanding Foam: An eco-friendly option, this foam is formulated with minimal environmental impact in mind. It offers the same high performance as other gap fillers while being more sustainable.

Each product in the Soudal Gap Filler range is engineered to provide efficient and durable solutions for filling large voids, ensuring that your construction and renovation projects benefit from improved insulation and structural integrity.

The Soudal Window & Door Product Range is designed for precision filling and sealing around window and door frames. These products ensure high linear yields, superior thermal and acoustic properties, and long-lasting performance. Here’s a breakdown of the range:

  1. Soudal Soudafoam 'Window & Door' Expanding Foam: This foam is specially formulated for filling and sealing gaps around window and door frames, providing excellent insulation and preventing air leakage.

  2. Soudal Soudafoam 'Window & Door XTRA' Expanding Foam: Offering an extra-high yield, this product is perfect for larger projects requiring more foam. It ensures a tight seal, enhancing the energy efficiency of your building.

  3. Soudal Soudafoam 'Window & Door SWS' Expanding Foam: Part of the Soudal Window System (SWS), this foam integrates seamlessly with other SWS products to create a comprehensive sealing and insulation solution.

  4. Soudal Window & Door Trade Expanding Foam: Designed for professional use, this foam provides a high-performance seal that adheres well to various substrates, including masonry, wood, and metal, with the added benefits of Soudal's Genius Gun Application.

These foams are essential for ensuring that windows and doors are properly sealed, preventing drafts and improving the overall thermal efficiency of a building. By using the right Soudal product, you can enhance both the comfort and energy efficiency of your spaces.

Soudal PU Foam Adhesives are a versatile range of fast-curing, ready-to-use, self-expanding polyurethane adhesives. These products are designed for clean, efficient, and economical permanent bonding of various building materials. Here’s a detailed look at the products in this range:

  1. Soudal Plasterboard Adhesive Foam: Ideal for attaching plasterboard to walls and ceilings, this foam adhesive offers strong adhesion and quick curing, making it a convenient choice for construction projects.

  2. Soudabond EASY - PU Adhesive Foam: This general-purpose adhesive foam is suitable for a wide range of building materials, including insulation panels, bricks, concrete, plaster, wood, and more. It provides a strong bond and easy application.

  3. Soudabond PLASTERBOARD - PU Adhesive Foam: Specifically formulated for plasterboard applications, this adhesive ensures a secure and durable bond, facilitating quick and efficient installation.

  4. Soudabond BLOCKS - Block & Stone PU Adhesive Foam: Designed for bonding blocks and stones, this product offers excellent adhesion and durability, making it ideal for masonry work and other heavy-duty applications.

  5. Soudabond TIMBER - Joint & Joist PU Wood Adhesive Foam: Perfect for woodworking projects, this foam adhesive provides a strong bond for joints and joists, ensuring stability and longevity.

These PU Foam Adhesives are suitable for a wide range of applications, from securing insulation panels to fixing decorative mouldings and more. Their versatility and strong bonding properties make them indispensable for both professional builders and DIY enthusiasts.

Soudal Fire Rated Expanding Foams are designed to provide an effective barrier against smoke and gas, offering up to 240 minutes of fire resistance.

These foams are ideal for enhancing fire safety in buildings, with both B1 and B2 rated products available depending on the level of fire protection required. Here’s a closer look at the options within this range:

  1. Soudal Soudafoam FR HY - HIGH YIELD Fire Rated Expanding Foam: This high-yield foam offers maximum volume expansion, providing robust fire resistance and excellent filling characteristics. It is ideal for applications requiring extensive coverage and fire protection.

  2. Soudal B2 Fire Class Trade Expanding Foam: Offering a fire rating of 30 minutes to 2 hours depending on joint configuration, this foam is suitable for various fire-rated applications. It combines good filling properties with fire resistance, ensuring safety without compromising on performance.

Fire rated expanding foam is essential for sealing joints and gaps in fire-resistant constructions. It not only provides a barrier against fire and smoke but also offers high thermal properties and acoustic insulation. Additionally, it resists shrinkage and can be painted over for a seamless finish.

By incorporating Soudal Fire Rated Expanding Foam into your construction projects, you can significantly enhance the fire safety of your buildings, ensuring compliance with safety regulations and providing peace of mind.

Soudal Sprayable Insulation Foam is designed for easy application, offering a flexible solution for enhancing energy efficiency and sealing gaps across various substrates. This product is ideal for insulating hard-to-reach areas and upgrading the thermal performance of existing structures. Here’s an overview of this versatile foam:

Soudal Sprayable Insulation Foam: This foam is formulated to provide robust insulation and sealing capabilities. It expands upon application to fill gaps and cavities, creating a continuous insulating layer that improves energy efficiency and reduces thermal bridging. The sprayable nature of the foam allows for precise application, making it suitable for both large surfaces and intricate areas.

Key benefits of Soudal Sprayable Insulation Foam include:
  • Easy Application: The foam can be sprayed directly onto surfaces, ensuring a uniform and continuous insulating layer.

  • Energy Efficiency: By sealing gaps and cavities, the foam helps reduce heat loss, lowering energy consumption and improving the overall thermal performance of buildings.

  • Versatility: Suitable for a wide range of substrates, including masonry, wood, metal, and plastic, making it an adaptable solution for various insulation needs.

  • Moisture Resistance: The foam provides a moisture barrier, preventing water infiltration and protecting the integrity of the building structure.

  • Acoustic Insulation: In addition to thermal properties, the foam also offers soundproofing benefits, reducing noise transmission through walls and other surfaces.

Whether you’re working on new constructions or retrofitting existing buildings, Soudal Sprayable Insulation Foam offers a reliable and efficient solution for improving insulation and energy efficiency.

The Soudal SOUDAFOAM Range is meticulously designed to meet specific sealing and insulation needs. This collection includes products tailored for various applications, ensuring precision, efficiency, and reliability for both professional and DIY projects. Here’s a detailed overview of the offerings within this range:

  1. Soudafoam Gap Filler: This foam is perfect for effectively filling large gaps and cavities. It expands significantly to provide substantial volume, ensuring excellent thermal and acoustic insulation. Ideal for both indoor and outdoor use, it helps prevent drafts and enhances energy efficiency.

  2. Soudafoam Window & Door: Specially formulated for sealing around window and door frames, this foam provides a high linear yield, ensuring a tight and secure seal. It improves thermal performance, prevents drafts, and reduces noise transmission, making it essential for creating comfortable living spaces.

  3. Soudafoam FR HY - High Yield Fire Rated Foam: This high-yield foam offers maximum volume expansion while providing robust fire resistance. It’s essential for applications requiring extensive coverage and high safety standards, offering up to 240 minutes of fire protection.

  4. Soudafoam 2K - Two-Component Fast Curing Foam: This two-component foam cures rapidly, making it ideal for projects with tight deadlines. It provides a strong bond and excellent insulation properties, ensuring durable and efficient results.

  5. Soudafoam SMX - Environmentally Friendly Foam: Formulated with minimal environmental impact in mind, this foam offers high performance while being more sustainable. It’s suitable for users looking for eco-friendly building solutions without compromising on quality.

Advantages of the SOUDAFOAM Range:
  • Precision Application: Each product is designed for specific applications, ensuring accurate and efficient use.

  • High Performance: The foams offer excellent thermal and acoustic insulation, fire resistance, and strong adhesion, making them suitable for a wide range of projects.

  • Versatility: Whether you’re filling large gaps, insulating structures, or enhancing fire safety, the SOUDAFOAM range has a product tailored to your needs.

  • Ease of Use: Designed for both professionals and DIY enthusiasts, these foams are easy to apply, ensuring reliable and long-lasting results.

The Soudal SOUDAFOAM range provides comprehensive solutions for various sealing and insulation tasks, ensuring your projects benefit from improved energy efficiency, safety, and comfort.

The Soudal Genius Gun® Range revolutionises the application of expanding foam with its innovative, patented trigger mechanism.

This unique feature combines the precision of a gun-grade application with the convenience of a handheld system, making it an excellent choice for both professionals and DIY enthusiasts.

Here’s a closer look at the benefits of this range:

  • Genius Gun Technology: The Genius Gun’s trigger mechanism allows for controlled, precise application of expanding foam, reducing waste and ensuring an even distribution. The attached cap includes a bung that reseals the applicator straw after use, enabling the foam to be stored for up to six weeks without clogging.

Advantages of the Genius Gun System:
  • Ease of Use: The ergonomic design and intuitive trigger mechanism make the Genius Gun easy to use, even for those with minimal experience.

  • Precision Application: The controlled release of foam reduces waste and mess, allowing for cleaner and more efficient work.

  • Reusability: The resealable cap ensures that any unused foam can be stored and reused, enhancing the product’s cost-effectiveness.

The Soudal GENIUS GUN range is an innovative solution for those seeking a combination of precision, convenience, and performance in their expanding foam applications.

The Soudal SOUDABOND Range features a comprehensive collection of specialised polyurethane (PU) adhesive foams designed for diverse construction needs. These products utilise advanced technology to ensure superior performance, efficiency, and durability in various applications.

Here’s an in-depth look at the SOUDABOND range:

  1. Soudabond EASY - PU Adhesive Foam: A versatile adhesive foam suitable for a wide range of materials, including plasterboard, insulation panels, and bricks. It provides a strong, permanent bond and is easy to apply, making it ideal for quick repairs and large-scale projects alike.

  2. Soudabond PLASTERBOARD - PU Adhesive Foam: Specifically formulated for attaching plasterboard to walls and ceilings, this adhesive offers excellent adhesion and rapid curing. It simplifies the installation process, ensuring a secure and durable bond.

  3. Soudabond BLOCKS - Block & Stone PU Adhesive Foam: This product is designed for bonding blocks and stones in masonry work. It offers exceptional bonding strength and durability, making it suitable for heavy-duty construction tasks.

  4. Soudabond TIMBER - Joint & Joist PU Wood Adhesive Foam: Perfect for woodworking projects, this adhesive foam ensures a strong bond for joints and joists. It’s ideal for securing timber structures, providing stability and longevity.

Advantages of the Soudal SOUDABOND Range:
  • Superior Adhesion: Each product in the range is formulated to provide a strong, permanent bond, ensuring reliable performance across various materials and applications.

  • Efficiency: The fast-curing nature of these adhesive foams allows for quicker project completion, saving time and labour costs.

  • Versatility: With products tailored to specific applications, the SOUDABOND range offers solutions for a wide array of construction needs, from plasterboard installation to masonry work.

  • Ease of Use: Designed for both professionals and DIY enthusiasts, these adhesive foams are easy to apply, ensuring a clean and efficient bonding process.

The Soudal SOUDABOND range provides construction professionals with advanced, reliable, and efficient adhesive solutions, making it the go-to choice for superior bonding performance in various projects.

The Soudal COMPACT Range is engineered for ease and efficiency, catering specifically to the needs of DIY enthusiasts and professionals seeking convenient and effective solutions for home improvement tasks.

This range features innovative products designed with a unique 'Compact' adaptor that revolutionises the application process. Here’s a detailed look at the products in this range:

  1. Soudal Compact Fill & Insulate Expanding Foam: This high-performance polyurethane foam excels in both indoor and outdoor applications. It is perfect for filling gaps and cavities, providing excellent thermal and acoustic insulation. The compact adaptor allows for precise application, making it easy to use even in hard-to-reach areas.

  2. Soudal Compact Fix & Bond Adhesive Foam: This polyurethane adhesive foam offers outstanding bonding properties and gap-filling capabilities. It is ideal for a variety of tasks, from securing decorative mouldings to fixing skirting boards. The unique adaptor ensures controlled application, reducing waste and mess.

Advantages of the Soudal COMPACT Range:
  • Innovative Adaptor: The compact adaptor design simplifies the application process, providing better control and precision. This feature makes it easier to achieve professional results with minimal effort.

  • Versatility: Suitable for a wide range of applications, these products can be used for both small repairs and larger projects, making them a versatile addition to any toolkit.

  • Performance: Both products in the COMPACT range offer high-performance solutions, ensuring durable and reliable results. They provide excellent adhesion and insulation properties, contributing to the overall efficiency of home improvement tasks.

  • Ease of Use: Designed with the DIY enthusiast in mind, the COMPACT range is user-friendly, allowing even those with minimal experience to achieve professional-quality results.

The Soudal COMPACT Range is ideal for anyone looking to tackle home improvement projects with ease and efficiency.

These products provide a practical, high-performance solution for a variety of applications, ensuring that tasks are completed quickly and effectively.