Features & Benefits

🔥 4-Hour Fire Resistance – Certified to BS 476-20, EN1366-4 & DIN4102-1 standards, this B1-rated polyurethane foam provides up to 4 hours of reliable fire protection for fire-critical construction and repair applications.

🧱 Hand Grade for Easy Application – Designed for manual use without a foam gun, this hand-grade formula offers quick, controlled dispensing straight from the can—ideal for small jobs and general construction use.

🔇 Acoustic & Thermal Insulation – Closed-cell structure provides outstanding noise reduction and heat retention, helping to improve energy efficiency and indoor comfort.

⚡ Fast Curing & Versatile Finish – Expands up to 30x its original size for effective gap filling; can be cut, sanded, painted, or plastered once fully cured for a clean, professional finish.

🧤 All-in-One Fire Safe Solution – Supplied with gloves for safe handling. Suitable for sealing around windows, doors, cables, pipes, joints, soffits, and timber structures—both indoors and outdoors.

Description
The 750ml B1 Fire Rated Fill & Fix Expanding PU Foam (Hand Grade) is a professional-grade, fire-resistant polyurethane foam designed for sealing, filling, and insulating in fire safety applications. With a 4-hour fire resistance rating, it meets BS 476-20, EN1366-4, and DIN4102-1 standards, making it ideal for use in fire-critical environments such as door frames, pipe penetrations, and electrical cabling.
This pink-coloured foam expands up to 30 times its volume, providing superior thermal and acoustic insulation while maintaining an airtight, durable seal. The hand-grade can design allows easy manual dispensing without the need for a foam gun, making it perfect for on-site repairs and general installations.
CFC-free, quick-curing, and suitable for both interior and exterior applications, this foam ensures excellent adhesion to most building materials including wood, metal, brick, and concrete.