Arbo AR240 is a one-part, fire-rated expanding polyurethane foam tested to BS476 Part 20 for both horizontal and vertical applications. Supplied in HCFC-free and CFC-free aerosol cans, it expands up to 40 times its original volume after application. It is ideal for sealing joints that require fire integrity and insulation, such as walls, floors, partitions, perimeter joints around doors and windows, and service penetrations. However, it is not suitable for fully enclosed applications.   Key Points: Fire-rated expanding polyurethane foam tested to BS476 Part 20. Expands