Introducing the Everbuild Firefoam B1 Gun Grade in a generous 750ml size, your ultimate solution for fire-rated sealing and insulation. This quick-setting, one-part polyurethane foam expands upon application, providing up to 50 times the volume of the original contents. With a remarkable fire rating of up to 4 hours in specific joint configurations, this foam is ideal for ensuring safety and compliance in construction projects. Designed for use with the Everbuild Professional Foam Gun, it allows for precise application and easy handling. Once cured, the foam can be seamlessly cut, sawn, or plastered over in just one hour, making it perfect for both professional contractors and DIY enthusiasts. The Everbuild Firefoam B1 meets stringent standards, ensuring reliability and performance. Upgrade your building projects with this exceptional fire-rated foam today!