Property Value Width 1.0m Surface PET, PET+AL Heat resistance No bubble, no flow when heated at 75 degree for 2 hours Tensile strength 130N/50mm min Elongation 50% Lap adhesion 2.0 N/mm min Peel adhesion 1.5N/mm min Low temperature flexibility No crack at -15 degree when rolling 180 degreearound a R20mm-stick within 3 seconds Resistance to hydraulic pressure No penetration in 120min under 0.2 Mpa (20m hydrostatic head)