The Soudal Air Tight Foam Kit provides everything you need to create professional-quality airtight seals around windows, doors and construction joints.
Combining five cans of premium FLEXIFOAM® expanding foam with a precision applicator gun and foam cleaner, this complete kit is ideal for installers, builders and serious DIY users looking for long-lasting performance.
Designed to minimise air leakage while delivering outstanding thermal and acoustic insulation, the foam remains highly flexible after curing, allowing it to move with the building and reducing the risk of cracks over time.
Its low-expansion formula ensures accurate application with minimal waste, making it perfect for sealing delicate window and door installations.
Whether you're improving energy efficiency, reducing draughts or creating a durable weatherproof seal, this all-in-one kit delivers reliable results from the first application to the last.
Features:
- Complete kit including 5 × 700ml Soudal Air Tight Window & Door SWS Foam, professional applicator gun and 500ml foam & gun cleaner
- Premium single-component polyurethane gun foam
- FLEXIFOAM® technology provides up to three times more flexibility than standard PU foam
- Creates a completely airtight seal once fully cured
- Excellent thermal and acoustic insulation performance
- Primerless adhesion to most common construction materials
- Low-expansion formula for controlled, precise application
- High filling capacity with excellent dimensional stability
- No shrinkage or post-expansion after curing
- Elastic and compressible once cured for long-lasting durability
- Fast-curing formula helps speed up installation
- Water vapour open for improved building performance
- Freon-free formulation that is not harmful to the ozone layer
- Suitable for professional and trade use
Suitable For:
- Window installation
- Door installation
- Timber
- Concrete
- Brick
- Masonry
- Metal
- PVC
- Most common construction materials
Not Suitable For:
- Polyethylene (PE)
- Polypropylene (PP)
- PTFE (Teflon®)
- Areas exposed to prolonged UV without protection
Frequently Asked Questions:
What is included in the kit?
The kit contains five 700ml cans of Soudal Air Tight Window & Door SWS Foam, one professional foam applicator gun and one 500ml foam and gun cleaner.
What is this foam best used for?
It is designed for sealing around windows, doors, gaps, cavities and other building joints where an airtight, insulated seal is required.
Can it be used outdoors?
Yes. However, cured foam should be protected from direct UV exposure, as polyurethane foam is not UV-resistant.
Does the foam expand a lot?
No. Its low-expansion formula allows for controlled application, helping to prevent distortion of window and door frames.
Is the foam flexible after curing?
Yes. Thanks to FLEXIFOAM® technology, it remains highly flexible after curing, making it more resistant to movement and cracking than standard PU foams.
Does it provide insulation?
Yes. The foam offers excellent thermal insulation to improve energy efficiency while also reducing noise transmission through its acoustic insulation properties.
What surfaces will it bond to?
It adheres well to most construction materials, including concrete, brick, timber, metal and PVC. It is not suitable for PE, PP or PTFE surfaces.
How do I clean the applicator gun?
The included 500ml Foam & Gun Cleaner is designed to remove uncured foam from the applicator gun and other tools after use.
Is this suitable for professional use?
Yes. This complete kit is designed for trade professionals as well as experienced DIY users who require accurate application and reliable long-term performance.