Flexible reinforced polyethylene membrane for water protection of tunnel and cavities.
OLDROYD® MultiSafe 1200 R is a 1.15 mm thick reinforced membrane of flexible and strong polyethylene (LLDPE). It is specifically designed for waterproofing tunnel and cavities, in combination with shotcrete and meets the requirements for Type III by Handbook R510 (Chapter 8.1), Statens Vegvesen, Norway. The rough surface is specifically designed to provide good adhesion to the shotcrete in tunnels and cavities. It has a 150 mm wide weld bead on each side, marked with indication lines to ensure correct overlap. In combination with OLDROYD® RoadRunner reinforcement plug with spy this ensures optimal cover to the rebar grid and reduces vibration during the shotcrete process. This also minimizes the rebound loss of the shotcrete.
OLDROYD® MultiSafe 1200 R is based on OLDROYD Multi-Layer Technology™ and consists of three layers. It is white on the front towards the tunnel room with reinforced mesh and grey on the backside. It has a black signal layer to discover damages and breakages. It also comes in a white / black / white variant.
OLDROYD® MultiSafe 1200 R is suitable for hot air welding of all joints and comes on rolls in widths up to 4,2 m and lengths up to 90 m.
|Membrane Thickness||Reinforced 1,15 mm|
|Typical Size||4 m x 90 m or customized on request.|