Elastomeric, acrylic, waterproofing and heat insulating membranes WITH POLYPROPYLENE INSERTS. Polypropylene fibers offer an absolute seal to sealing solutions. Ideal for rooftops, tanks, ellenite, asbestos cement and visible concrete. Its water vapor permeability reduces the moisture content of the substrate and the mold growth internally, while at the same time it withstands puddles of rain. Bridges the capillary cracks of the substrate and does not pop up with the creation of new cracks. Tire without sticking. Up to 8 YEARS OF PROTECTION.