Description
Expanding Foam for Gap Filling, Insulation & Construction Joints
Soudafoam Gap Filler is a one-component hand-held polyurethane expanding foam designed for filling, sealing and insulating gaps, cavities and penetrations in construction applications. Its high 3D expansion characteristics enable effective filling of irregular voids while providing excellent thermal and acoustic insulation performance.
The rapid-curing formulation offers strong adhesion to most common construction materials without the need for a primer, making it suitable for a wide range of sealing and insulation tasks. Ideal for general building work, pipe penetrations, roofing applications and insulation installations, the foam expands to fill gaps and improve airtightness.
Once cured, the foam provides durable insulation performance and can be trimmed to achieve a professional finish.

Key Features & Benefits
- One-component polyurethane expanding foam
- Hand-held aerosol application
- High 3D expansion formula
- Rapid curing
- Excellent gap-filling performance
- Primerless adhesion to most construction materials
- Excellent thermal insulation properties
- Excellent acoustic insulation properties
- Suitable for general construction applications
- Easy-to-use hand-held format
- Ideal for sealing gaps and cavities
- Suitable for insulation and roofing projects
Suitable Applications
- Filling construction gaps and voids
- Pipe penetration sealing
- Insulation board installations
- Roofing applications
- General building and construction work
- Filling cavities around services
- Acoustic insulation projects
- Thermal insulation projects
- General sealing and filling applications
Technical Information
- Base: Polyurethane expanding foam
- Application Type: Hand-held aerosol
- Volume Yield (FEICA TM1003): Up to 27 litres from a 750ml can
- Acoustic Rating (ISO 717-1): 58 dB
- Thermal Conductivity (DIN 52612): 37 mW/mK
- Application Temperature: +5°C to +30°C
- Cure Type: Moisture curing
- Primer Required: No
Frequently Asked Questions
What is Soudafoam Gap Filler used for?
It is designed for filling, sealing and insulating gaps, cavities and penetrations in construction, roofing and insulation applications.
How much foam does a 750ml can produce?
Under FEICA TM1003 testing, a 750ml can provides a yield of up to 27 litres of cured foam.
Does the foam provide insulation?
Yes. The foam offers both thermal and acoustic insulation properties, making it suitable for sealing and insulating applications.
Can it be used around pipe penetrations?
Yes. It is suitable for sealing gaps around pipes, services and other construction penetrations.
What temperature can it be applied at?
The recommended application temperature range is between +5°C and +30°C.
Does it require a primer?
No. The foam provides primerless adhesion to most common construction materials.
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