B1 Fire Foam Gun Grade – 750ML

Everbuild Firefoam B1 is a quick-setting one-part polyurethane foam that combines exceptional fire retardant properties with versatility for a variety of applications. This product expands on application to up to 50 times its original volume, allowing it to fill gaps and cavities effectively. It meets stringent fire safety standards, including DIN 4102 Part 1 and BS 476 Part 20, achieving fire ratings of up to 4 hours in certain joint configurations. Suitable for both trade professionals and DIY enthusiasts, it provides robust insulation and sound deadening capabilities.

Once applied, Firefoam B1 becomes tack-free in just 10 minutes and can be cut, sawn, or plastered over within one hour, provided the working temperatures are maintained between +5°C to +25°C, ideally around 20°C. Its medium fine cell structure allows for seamless application to various surfaces, including wood, concrete, metal, and brick, making it an ideal choice for both indoor and outdoor use where fire resistance is required.

Specifications

Type: Polyurethane foam
Volume: 750ML
Expansion: Up to 50 times can volume (35 litres per 750 ml can)
Fire Rating: Up to 4 hours (certified in certain joint configurations, Class B1, BS 476 Part 20, DIN 4102 Part 1)
Setting Time: Tack-free in 10 minutes; can be cut, sawn, or plastered over in 1 hour; fully cured within 1 hour (depending on conditions)
Colour: Pink
Temperature Resistance: Long term: -40°C to +80°C
Cell Structure: Medium fine
Insulating Properties: Thermal and acoustic (sound deadening)
Suitable Surfaces: Wood, concrete, metal, brick, common building materials
Indoor/Outdoor Use: Suitable for both indoor and outdoor applications where fire resistance is required
Manufacturer: Sika Limited (Everbuild)

Key Features

• Quick-setting one-part polyurethane foam
• Expands up to 50 times its original volume
• Fire-rated for up to 4 hours in specific configurations
• Can be cut or plastered over within 1 hour
• Suitable for a wide range of surfaces