ALSAN® 520 / CAMPOLIN NEO is a liquid applied roof waterproofing membrane (LARWK) based on a resin of polyurethane modified, manufactured by the company SOPREMA IBERIA, S.L.U. Consists of a polyurethane- acrylic resins, mono-component, elastomeric with internal mesh; which once polymerised conforms a jointless elastic lining, in form of a layer completely bonded to the support (concrete, mortar, ceramic, metal and bitumen membranes). This kit doesn’t need a final UV protective coat.