Soudal Gun Grade Expanding Foam – Champagne PU Insulation & Gap Filling Foam

£7.30

Safety Information

Expanding foam products require careful handling.

Before use:

  • Read the complete product label and safety instructions.
  • Use in a suitably ventilated area.
  • Avoid contact with skin and eyes.
  • Wear suitable gloves and eye protection.
  • Keep away from sources of ignition where indicated on the label.
  • Do not puncture or burn the can, even when empty.
  • Keep away from children.
  • Follow the manufacturer’s storage instructions.
  • Use the product only for applications for which it is recommended.
  • Refer to the current Safety Data Sheet for detailed safety information.

Soudal B3 Gun Grade Expanding Foam 750ml is a high‑performance PU foam for professional sealing, filling and insulating. Its gun‑grade formula provides precise application, strong adhesion and excellent thermal and acoustic insulation — ideal for window and door fitting, gap filling and general construction work.

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Description

Soudal B3 Gun Grade Expanding Foam 750 ml – High‑Performance PU Foam for Sealing, Filling & Insulation

Soudal B3 Gun Grade Expanding Foam (750 ml) is a professional‑quality polyurethane foam designed for precise application using a foam gun. Rated B3, it offers excellent expansion, adhesion and insulation for a wide range of construction, installation and repair tasks.

This moisture‑curing foam provides a controlled, even bead with minimal waste — ideal for window and door fitting, gap filling, pipe penetrations, roofing work and general sealing where accuracy and efficiency matter.

What Is Soudal Gun Grade Expanding Foam?

Soudal Gun Grade Expanding Foam is a polyurethane-based expanding foam supplied in a 750 ml canister designed for use with a suitable foam gun.

When dispensed, the foam expands to fill appropriate gaps, joints, cavities and openings. Once cured, it can provide a useful sealing and filling layer for a wide range of suitable construction and installation applications.

The gun-grade format provides greater control over the amount and placement of foam, making it particularly useful for professional tradespeople, installers, builders and experienced DIY users.

Product Specifications

Product Soudal B3 Gun Grade Expanding Foam
Focus Keyword Soudal Gun Grade Expanding Foam
Product Type Gun Grade Expanding Foam
Brand Soudal
Size 750 ml
Foam Type Polyurethane Expanding Foam
Application Compatible Foam Dispensing Gun
Classification B3 – check current manufacturer documentation
Main Uses Gap filling, sealing, installation and suitable insulation applications
Suitable Users Tradespeople, builders, installers and DIY users

Soudal B3 Gun Grade Expanding Foam 750 ml

The full product name is Soudal B3 Gun Grade Expanding Foam 750 ml.

The 750 ml can provides a convenient format for professional and general building applications where controlled foam application is required.

The B3 designation refers to the product’s fire classification within the relevant polyurethane foam classification system. Always check the manufacturer’s current technical documentation for the precise classification, testing conditions and limitations applicable to the specific product.

Key Features of Soudal Gun Grade Expanding Foam

Gun Grade Application

Soudal Gun Grade Expanding Foam is designed to be used with a compatible dispensing gun. This allows the user to control foam delivery more precisely during application.

Polyurethane Expanding Foam

The product uses expanding polyurethane foam technology to fill suitable gaps and cavities during construction, installation and repair work.

750 ml Can

The 750 ml size provides a practical quantity for a range of professional, maintenance and DIY projects.

Controlled Application

Using a compatible foam gun allows the user to control the amount of foam being dispensed, which can be especially useful when filling narrow gaps or working around installed components.

Gap Filling

The expanding nature of the foam makes it suitable for filling appropriate gaps, cavities and openings where a compatible expanding foam is required.

Sealing & Insulation Applications

The foam can be used for suitable sealing and insulation-related applications where polyurethane expanding foam is appropriate.

Suitable for Building & Installation Work

Soudal Gun Grade Expanding Foam is useful for a variety of construction, installation, maintenance and renovation applications.

Benefits of Soudal Gun Grade Expanding Foam

Precise Foam Application

One of the main advantages of gun-grade foam is application control. A dispensing gun allows users to apply foam more accurately and regulate the amount required for a particular gap or opening.

Effective Gap Filling

As the foam expands after application, it can fill suitable gaps and cavities that may be difficult to seal using conventional materials.

Useful for Installation Work

Expanding foam is commonly used around suitable window and door installation areas and other building components where gap filling and sealing are required.

Versatile Building Material

Soudal Gun Grade Expanding Foam can be useful across construction, renovation, maintenance and repair applications.

Professional-Friendly Format

The gun-grade design is particularly convenient for tradespeople and professional users who regularly work with expanding foam.

Reduces Material Waste Through Controlled Application

A compatible foam gun provides greater control over application, which can help users dispense only the amount required for the task.

Common Uses of Soudal Gun Grade Expanding Foam

Soudal Gun Grade Expanding Foam can be used for a wide range of suitable building and installation tasks.

Common applications include:

  • Window frame installation
  • Door frame installation
  • Filling construction gaps
  • Sealing suitable openings
  • Filling cavities
  • Insulation-related applications
  • Sealing around suitable building components
  • General building work
  • Renovation projects
  • Property maintenance
  • DIY repair projects
  • Construction finishing work

Always check the manufacturer’s technical documentation to confirm suitability for your particular application and substrate.

Soudal Gun Grade Expanding Foam for Windows & Doors

One of the most common applications for Soudal Gun Grade Expanding Foam is around suitable window and door frames.

During installation, gaps can occur between the frame and surrounding structure. An appropriate expanding foam can be used to fill these spaces and provide a sealing layer around the installation.

The gun-grade format is particularly useful because it allows the installer to control the amount of foam applied around the frame.

Care should be taken not to overfill cavities because expanding foam increases in volume after application.

Gap Filling Applications

Construction and renovation projects can involve numerous gaps and openings that require suitable filling material.

Soudal Gun Grade Expanding Foam can expand into appropriate spaces, making it useful for filling gaps that would otherwise be difficult to reach with conventional filling materials.

Before application, always make sure the gap and surrounding surfaces are suitable for polyurethane expanding foam.

Sealing Applications

Expanding foam can also be used for suitable sealing applications around building components, openings and joints.

The foam expands after dispensing and can create a continuous filling layer within suitable gaps.

However, it should only be used where the product is specified as appropriate. For specialist waterproofing, fire-stopping or structural applications, use a product specifically tested and approved for that purpose.

How to Use Soudal Gun Grade Expanding Foam

Always follow the latest instructions provided on the product packaging and manufacturer’s technical documentation.

Step 1: Prepare the Surface

Make sure the surfaces are clean and free from dust, loose material, grease and other contaminants.

Suitable surfaces may benefit from light dampening where recommended by the manufacturer, as moisture can influence the curing of polyurethane foam.

Step 2: Prepare the Foam Gun

Attach the Soudal B3 Gun Grade Expanding Foam 750 ml can to a compatible dispensing gun according to the manufacturer’s instructions.

Ensure the connection is secure before dispensing.

Step 3: Shake the Can

Shake the can thoroughly as directed on the product label before use.

Step 4: Apply the Foam

Apply the Soudal Gun Grade Expanding Foam into the required gap or cavity using controlled pressure on the dispensing gun.

Do not fill a cavity unless the manufacturer’s instructions specifically recommend doing so, because the foam expands after application.

Step 5: Allow the Foam to Cure

Allow the foam to cure according to the manufacturer’s recommended curing conditions and times.

Avoid disturbing the foam while it is curing.

Step 6: Trim Excess Foam

Once fully cured, excess foam can generally be trimmed using a suitable sharp cutting tool where appropriate.

The finished surface can then be treated or covered with a compatible material if required.

Why Use Gun Grade Expanding Foam?

There are several reasons professional users prefer gun-grade expanding foam.

The dispensing gun provides improved control compared with many standard straw-applied foam products. This can be particularly beneficial when working around window frames, door frames and other areas where precise foam placement is important.

Soudal Gun Grade Expanding Foam is therefore a practical option for users who regularly complete installation, sealing, filling and renovation work.

Suitable Surfaces

Depending on the exact application and manufacturer’s recommendations, polyurethane expanding foam can be suitable for various common construction substrates.

Potentially suitable surfaces may include:

  • Concrete
  • Brickwork
  • Masonry
  • Timber
  • Plaster
  • Certain building boards
  • Other compatible construction materials

Always check the current product technical data before applying the foam to a particular substrate.

Important Limitations

Although expanding foam is highly useful for many building applications, it should not be treated as a universal construction material.

Soudal Gun Grade Expanding Foam should not be used as a substitute for:

  • Structural support
  • Mechanical fixings
  • Specialist waterproofing systems
  • Approved fire-stopping systems unless specifically certified for that application
  • Materials requiring specialist chemical resistance

For specialist applications, always use a product specifically designed and tested for the required purpose.

Tips for Better Foam Application

For the best results when using Soudal Gun Grade Expanding Foam, consider the following:

  • Prepare surfaces before application.
  • Shake the can thoroughly before use.
  • Use a compatible foam dispensing gun.
  • Apply foam carefully and avoid excessive filling.
  • Allow sufficient curing time.
  • Protect cured foam from prolonged UV exposure where required.
  • Trim excess cured foam carefully.
  • Follow the manufacturer’s current application instructions.
  • Store and handle the can according to the product label.

Professional & DIY Applications

Soudal B3 Gun Grade Expanding Foam 750 ml is a practical option for professional tradespeople, builders, installers, maintenance teams and experienced DIY users.

Professionals can benefit from the controlled dispensing provided by a compatible foam gun, while DIY users can use the product for suitable home improvement, repair, and renovation applications.

Because expanding foam can expand significantly after dispensing, users should always understand the application requirements before starting a project.

Why Buy Soudal B3 Gun Grade Expanding Foam 750 ml?

If you need a convenient and controllable expanding foam for suitable building, installation, repair, and renovation applications, Soudal B3 Gun Grade Expanding Foam 750 ml is a practical choice.

Its gun-grade format allows controlled application, while its expanding polyurethane formulation makes it useful for filling suitable gaps, cavities, and openings. It is particularly convenient for professional installation and maintenance work where accurate foam dispensing is important.

Choose Soudal Gun Grade Expanding Foam for controlled, practical and reliable gap-filling and sealing applications across your next suitable building project.

Additional information
Weight 0.8 kg
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