Crumb Rubber Modified Bitumen (CRMB) or Polymer Modified Bitumen (PMB) is hydrocarbon binder obtained through physical and chemical interaction of crumb rubber, produced by recycling of used tyres, with bitumen and some specific additives. The Flextal range of CRMB offers binders which are stable and easy to handle with enhanced performances. CRMB is suitable for pavements submitted to all sorts of weather conditions, highways, traffic denser roads, junctions, heavy duty and high traffic sea port roads etc. It is a durable and economical solution for new construction and maintenance of wearing courses. Its applications go from binder for road asphalts to built-up roofing membranes and other waterproofing uses. The use of crumb tire rubber as a binder modifier may contribute to solving a waste disposal problem and to improving the quality of road pavements.