ISOESTERE and ISOESTERE MINERAL are good-quality prefabricated waterproof plastomeric membranes. They are made from a POLYPROPYLENE-modified distilled bitumen compound and have a polyester staple-fibre nonwoven carrier reinforced and stabilized with glass strands parallel to the machine direction. The carrier features good mechanical qualities and good ultimate elongation. The compound provides remarkable low temperature flexibility properties. Quality is guaranteed by the application of sophisticated technology to manufacturing processes. The ISOESTERE and ISOESTERE MINERAL membranes are produced to the quality standards set by NAT® technology the innovative manufacturing system for the control of polymer matrix ageing in bituminous membranes.