Two-component modified polyurethane product characterized by excellent elasticity, great toughness, extreme workability and a significant rate of acoustic damping. It is recommended for the realization of waterproofing, soundproofing and vibration damping treatments. Particularly recommended for Italkem cycle Naviflex® EXPANDABLE PU A+B+C, it is applied on steel and iron substrates, previously treated with EPOXY PRIMER – or primer with equivalent technical characteristics. It meets the criteria of the IMO (International Maritime Organization) standard.