PVC waterproof membrane:1.German formula 2.Excellent in anti UV&solar radiation etc.3. ... 4.Passed SGS,ISO etc Hannor PVC Waterproofing MembraneIt is German formula, and modified, with much more better performances, which has ... bubble, crack, adhesion and holeThickness1.2mm/1.5mm/2.0mm German formula self-adhesive PVC waterproof membrane