... 3) The adhesive layer is covered with a protective layer 4) Applications: a) For coupling and sealing pipe joints in ventilation, air ... , moisture and contamination d) Prevents corrosion e) Heat-reflecting covering 5) Thickness of aluminum foil: 15 micron, 20 micron, 25 micron ... , 30 micron, 35 micron, 40 micron, 50 micron 6) Sizes: a) 50mm x 5m b) 50mm x 10m c) 50mm x ...