Fire grade FSK facing for duct wrap of HVAC systems and metal building insulation Features:1) With high tensile strength and bursting strength2) Used as jacket facing for glass wool, rock wool, PU foam and other insulation toprotect them against vapor moisture, in order to work more effectively3) Fire Grade: BS476 Class O & Class 1Specifications:1) FSK-R715A:a) Foil: 7μmb) 3-way scrim: 8 x 12 ...