Gun Grade fire rated one component, expanding polyurethane foam filler. Rapid curing. Excellent thermal and acoustic insulation properties. Excellent primerless adhesion on most construction materials. Fire rated polyurethane foam filler|EN1366-4 – Fire resistance, up to 2 hours depending on joint configuration|Fire class DIN 4102 B2|Acoustic rating – 58 dB|Insulation factor – 36mW/mK · · · one part polyurethane foam. For use with P45 gun foam applicator it expands on application to up to 50 times the can contents. · · Available in packs of 12 · · Meets requirements of BS476 Part 20 and DIN 4102 Part 1 for construction materials · · Fire resistant for up to 2 hours in certain joint configurations · · Fire rated polyurethane foam filler · · EN1366-4 – Fire resistance, up to 2 hours depending on joint configuration