Three - ply tape consisting of a stabilised polyethylene backing with plastic butyl on both sides. The consistency of the butyl on the one side should be formulated in such a way that, under tension, it flows on uneven steel surfaces. To facilitate correct application, this butyl is a grey colour. The grey butyl layer of the tape face the steel and this should always be the thicker layer of butyl rubber.

Total tape thickness app. MM 0,8
Tensile strength at 23°C. N/10 mm > 120
Elongation at break at 23°C % > 600
Modulus at 10% elongation N/10mm 38
Dielectric strength KV/mm > 35
Water vapour transmission, g/m2 . 24 h < 2 •10-1
Water absorption at 23°C, % < 0,05
Saponification value
carrier film & adhesive Mg KOH / g 1,0
Permiability to Oxygen G/ m² • 24h < 2 • 10-4