Soudafoam Gun

Soudafoam Gun is a one-component, self-expanding polyurethane foam with CFC-free propellants that are completely harmless to the ozone layer. It requires the use of a specialized PU foam gun; this gun allows for ergonomic application and for achieving its large filling capacities. With its super-high-yield formulation and an expansion value of up to 57x, each 750 ml can of Soudafoam Gun can be expected to create up to 43 litres of cured foam.

  • Excellent adhesion on most substrates (except PTFE, PE, and PP)
  • High thermal and acoustical insulation
  • Superb filling capacities
  • Excellent stability
  • Water-resistant, and capable of creating a waterproof barrier

750 ml pressurised aerosol can, 12 cans / box

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  • Super high yield formulation to achieve large running metres and filling capacities
  • Requires a PU foam gun (sold separately) for application and to achieve superior foam properties and yield
  • Self-expanding to easily fill up large gaps and cavities
  • Open-cell technology for faster curing times, better insulation, and higher strength
  • Excellent dimensional stability means no excessive curing and post-expansion pressure
  • Will not shrink or collapse
  • Can even be used as an insulating adhesive for mounting and bonding
  • Superb shelf-life with little degradation of performance after storage
  • Made in Belgium by the one of the world’s largest PU foam manufacturers


  • Installation of window frames
  • Installation of doorframes
  • Filling of cavities
  • Sealing of all openings in roof constructions
  • Creation of a soundproof screen
  • Mounting and sealing of window doorframes
  • Connecting of insulation materials and roof constructions
  • Application of a soundproofing layer on motors
  • Improving thermal insulation in cooling systems
  • Installation of air conditioners
  • Bonding of insulation panels

How to use

  • Always shake the can aggressively before application
  • Spraying a fine mist of water on the substrate may promote adhesion and cell structure
  • Screw a PU foam gun on to the threaded adapter on the can
  • Turn the can upside down (gun right-side up) to extrude the foam
  • Fill gap up to 60% – 80%, and allow for self-expanding properties to fill the rest
  • Allow foam roughly 3 hours to expand and cure
  • Cut away excess foam from the joint if necessary
  • To prevent blockage, PU foam guns must be cleaned with PU Gun and Foam cleaner after use.

More instructions – see our PDF

Storage and warnings

  • Soudal PU foams can be stored up to 18 months in unopened packaging in a cool, dry storage place with temperatures between 5 to 25C.
  • Always store can with the valve pointed upwards.
  • Always use safety goggles and gloves when using PU foam.
  • PU foams are highly flammable. Do not smoke or have any source of fire near during application.
  • For the full list of precautions, please consult the Technical Data Sheets and Material Safety Data Sheets as provided.

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Required Accessories for this product

Gun and Foam Cleaner

Cleans and partially dissolves fresh and uncured PU foam and foam stains. Also for the cleaning and maintenance of PU foam guns. Fitted with regular threaded adapter for foam guns, and includes spray attachment.

Soudal Compact PU Foam Gun

Compact Foam Gun

High quality, lightweight PU foam gun for professional applications requiring precise dosing and best cell structure. A PU foam gun is required for application of Gun-type PU foams, such as Soudafoam Gun. Made in EU.