FSK: Foil-scrim-kraft, Scrim=Yarn
FSK Insulation facing is an outer surface of insulation materials. It is additional layer made of reinforced Aluminum foil or PP film. Foil-scrim-kraft insulation facing is an insulation product that is both a vapor barrier and a flame retardant.
FSK Insulation facing is laminated 5 layers of structure, the outer layer is Aluminum foil and Kraft paper. The middle layer is the Glass fiber layer double side coated with Flame-retardant adhesive, it increased tensile strength of FSK, and the Aluminum foil and Kraft paper are firmly bonded.
FSK insulation facing has a vapor barrier or a vapor retarder (the facing) that helps prevent moisture from moving from one space to another. The facing also helps protect the surface, hold the insulation together and fasten the material to building components.FSK insulation as a laminated insulation facing protects insulation materials as like as a jacket.
FSK is most commonly used to exposed surfaces of Duct wrap, HVAC Ductwork, Exterior wall insulation, Metal building insulation, Pipeline insulation, Hot water tank insulation.