FSK which stands for Foil Scrim Kraft is used as jacket facing for glass wool, rock wool, PU foam and other insulation to protect them against vapor moisture, in order to work more effectively. Use for sealing FSK duct board. Excels in demanding temperature and humidity applications. Long lasting adhesion on cleandry surfaces. Full bond within 24 hours. With release paper. To seal joints in air conditioning industry requiring high strength.