The Everbuild Fire Foam B2 Gun Grade is a high-quality expanding foam specifically designed for fire-rated installations. This 750ml easy-to-use product is self-expanding, cures quickly and offers excellent filling characteristics. It adheres to all common building materials, providing a durable seal against smoke and fire for up to 4 hours. With its gun applied method it allows precise control over the foam delivery, making it perfect for professional applications.