(PVC/NBR)rubber plastic insulation board welcome to our website:chinalffed.com Distinctive advantages: Closed structure can effectively prevent thermal conduction. Thermal conductivity 0.034W/mk while 0. High heat emission coefficient of surface, up to 9W/m2k. Excellent anti-steam permeated ability; moisture resistance 4,500 (DIN 52615); "built-in" steam-proof coating; the insulation board is insulating layer and moisture-proof coating as well. Excellent fireproofing; oxygen index is above 28. Easy for installation. No CFC, HFC, HCFC or other materials containing fluorine No formaldehyde, dust or fiber. Excellent fireproof performance. Oxygen index 1 28 2 32 3 35 4 40 Factor 5000 7000 10000-12000 Utility temperature -40 degree-105 degree According to international GB/T17794-1999<Division Methods of construction material burning performance>, FUERDA rubber sponge insulation board is judged as GB/T17794-1999 Grade "B2" difficult-flammable material after testing. Application areas: 1.Refrigeration unit and equipment for air-conditioning system 2.Frozen water pipe 3.Condensing water pipe 4.Air duct and hot water pipeline