Two-component polyurethane adhesive with low calorific value and very high cohesive strength. Suitable for bonding various materials such as: plasterboard, wood, concrete, galvanized sheet metal, steel, aluminum, rock wool, expanded polystyrene, expanded polyurethane. It must be catalyzed at 25% by weight and properly mixed with the CTZ F17 catalyst. The Certificate of Approval (Form B) and the Surveillance Form (Form D) issued by RINA in accordance with European requirements (EC standards), verified by international regulations (IMO), are available.