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Soudal Genius Gun Expanding Foam

expanding-foam

Soudal Genius Gun Expanding Foam

$21.95
(AUD) inc GSTIn stock

Soudal Genius Gun Expanding Foam is a ready-to-use, single-component waterproof expanding polyurethane foam designed for precise sealing, filling and insulation. The patented Genius Gun system allows controlled application without the need for a separate foam gun.

The resealable extrusion straw enables reuse of the canister for several weeks, making it ideal for both professional trades and maintenance applications. 

What Is Soudal Genius Gun Expanding Foam Used For? 

Soudal Genius Gun is used to seal gaps, joints and cavities where a waterproof, airtight and insulating seal is required. It is commonly applied around windows, doors, roof penetrations and service openings.

This expanding foam provides strong adhesion to most construction materials while maintaining excellent form stability. 

Is Soudal Expanding Foam Waterproof? 

Yes. Soudal Genius Gun Expanding Foam provides water-resistant sealing once cured, making it suitable for applications where moisture resistance is required. It is commonly used as a waterproof expanding foam sealant for building and insulation purposes.

Product Characteristics 

  • Waterproof expanding polyurethane foam 
  • Excellent form stability with no shrinkage or post-expansion 
  • Strong adhesion to most building materials (except PE, PP and PTFE) 
  • High thermal and acoustic insulation performance 
  • Precise, controlled application with Genius Gun system 
  • Resealable straw allows reuse for weeks 
  • Easy to apply without a separate foam gun 

Applications 

  • Filling gaps and cavities 
  • Sealing openings in roof and wall constructions 
  • Waterproof expanding foam sealant for service penetrations 
  • Acoustic and sound-deadening applications 
  • Thermal insulation improvements 
  • Cold room and cold storage insulation 
  • General PU foam sealing applications 

Suitable Substrates 

  • Concrete 
  • Masonry 
  • Brick 
  • Timber 
  • Metal 
  • Most common building materials 

Important Usage Notes 

Soudal Genius Gun Expanding Foam is designed for gap filling and sealing, not as a primary structural or exposed waterproofing membrane. For UV-exposed areas, appropriate covering or protection is recommended.

SO-ExpandingFoam600
Soudal
Miscellaneous
Multi-purpose, Other
Champagne Colour
750ml
Can
Spray Gun
pdf iconSoudal Genius Gun Expanding Foam

FAQ

  • Yes, once cured it provides a water-resistant seal suitable for moisture-prone areas. 
  • Yes, the Genius Gun system allows resealing and reuse for several weeks. 
  • Yes, expandable foam can be used outdoors when it is specifically designed to be weather-resistant and waterproof. The WaterStop Shop offers expandable foam solutions suitable for external applications exposed to rain and humidity.
  • The WaterStop Shop provides high-quality waterproof expanding foam, expanding foam spray, and expandable foam solutions designed for long-lasting performance. Our products help protect homes and buildings from water damage while improving insulation and energy efficiency.
  • It offers excellent insulation and sealing performance typical of high-quality PU foams. 
  • Yes, it is suitable for acoustic sealing and sound-deadening applications. 
  • Yes, it is widely used in Australian construction and sealing applications. 
  • Contact Waterstop for guidance on selecting the right waterproof expanding foam or sealing solution for your project. 

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