Description
Fischer General Purpose B3 Hand Foam – 750ml
The Fischer General Purpose B3 Hand Foam 750ml is a high-quality one-part expanding polyurethane foam designed for sealing, filling, bonding, and insulating a wide range of gaps and cavities in construction and installation work. Supplied in a convenient hand-held aerosol can, it is easy to apply without the need for a foam gun.
This versatile expanding foam provides excellent adhesion to most building materials, including concrete, brick, stone, wood, metal, and many plastics. Once cured, it delivers reliable thermal and acoustic insulation, helping to reduce heat loss, noise transfer, and air leakage.
It is particularly suitable for window and door frame installation, wall penetrations, pipe and cable entries, prefabricated elements, and general cavity filling. The foam has been tested for use in wet environments, making it suitable for applications where moisture resistance is required.
Key Features
- 750ml hand-applied expanding foam
- One-part polyurethane foam – ready to use
- Good adhesion to most common building materials
- Provides high thermal and joint sound insulation
- Suitable for use in dry and wet environments
- Resealable adapter for reuse of opened cans
- Can be cut, trimmed, and painted once cured
Benefits
- Improves energy efficiency by reducing air leakage
- Creates an airtight and weather-resistant seal
- Helps reduce sound transmission between joints
- Saves time with easy hand application
- Reduces product waste with resealable valve
- Suitable for both trade and DIY use
Typical Applications
- Sealing around windows and doors
- Filling gaps in walls, floors, and ceilings
- Insulating around pipes, ducts, and cables
- Roof extensions and drylining work
- Prefabricated elements and wall penetrations
- General construction, maintenance, and DIY projects