Soudal Fill and Fix PU Foam

Fill and Fix Foam

Soudal Fill & Fix Foam is a one-component, self-expanding, ready-to-use polyurethane foam with propellants which are completely harmless to the ozone layer. Every can comes with a straw adapter for quick, simple, and convenient application to fill gaps, cavities, and joints. With its high-yield formulation and an expansion value of 30 to 40x, each 750 ml can of Soudal Fill & Fix Foam can be expected to create up to 30 litres of cured foam.

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

750 ml pressurised aerosol can, 12 cans / box

Foam colour


More info


  • High yield formulation to achieve large running metres and filling capacities
  • Includes straw applicator for fuss-free and simple applications
  • 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
  • Attach the included straw applicator on the foam nozzle firmly
  • Turn the can upside down to extrude the foam
  • Fill gap up to 50% – 70%, 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

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.

Watch videos

How to use
Yield benchmark against competitors


Also available:

More Product Info