POLYFLEX LIGHT and POLYFLEX LIGHT MINERAL are extremely high-performance prefabricated waterproof plastomeric membranes made from a latest generation REOXTHENE ultralight technology modified distilled bitumen compound and a heavyweight spunbond polyester nonwoven carrier, reinforced and stabilized with glass strands parallel to the machine direction. The special type of compound - which exceeds previous weight/thickness parameters - and the carrier's very good mechanical properties (excellent elongation qualities, considerable shear resistance) combine to make these membranes suitable for even the most demanding jobs. The special formulation gives unique low temperature flexibility properties (cold flexibility down to -20 °C). The innovative patented technology adopted in the production of these membranes offers an additional guarantee of lasting product quality, stability and lengthy service life.