Thermal protection of the floor, tunnel and DEI bulkhead wall. The multi-layer structure includes, among other things, an aluminum insert with a thickness of 0.25 mm and a layer of glass composite with a thickness of 3 mm. Temperature resistance: Continuous operation: 950 ° CDesigned to provide the best possible heat protection in areas where high temperatures are always present and problematic, Floor & Tunnel Shield II limits heat transfer on fire walls, transmission tunnels, floor boards, fuel cells and other areas where heat is an issue. & nbsp