Gulf-O-Flex Sheets Insulation are flexible, elastomeric thermal insulations. Both are supplied in flat sheets 36x 48(.92mx 1.22m), in popular thicknesses. Gulf-O-Flex sheet also available in 48 (1.22m) x 360 (9.20m) continuous rolls in 18 , 14 , 38, 12, 34, 1, 1-14, 1-12 and 2. The insulations are furnished with a smooth skin one side or both sides on request, which forms the outer exposed insulation surface. The expanded closed-cell structure of Gulf-O-Flex makes it an efficient insulation. It is manufactured without the use of CFC's, HCFC's or HFC's. It is also formaldehyde free, dust free, fiber free and resists mold and mildew. Method of Test for Surface Burning Characteristics of Building Materials Gulf-O-Flex Sheet Insulations have a flame-spread index of less than 25 and a smoke-developed index of less than 50 as tested by the third party testing lab. (ASTM E 84 Method of testing surface burning characteristics of building materials complied. Under the supervision of our R&D dept. based in Germany consistently provide actual values on these key performance criteria for mechanical system insulation. Thermal Conductivity: 0.0391wm-K in 40C. Fire Rating: Class 0 and Class 1 under the specification of BS 476 Parts 6 & 7. USES Gulf-O-Flex is used to retard heat gain and control condensation drip from chilled water and refrigeration systems.