news 3000-hour salt spray test report of marine polyurethane anticorrosion coating tri(dimethylaminopropyl)hexahydrotriazine marine polyurethane anticorrosion coating: salt spray test report of tris(dimethylaminopropyl)hexahy... 03/191113000-hour salt spray test report of marine polyurethane anticorrosion coating tri(dimethylaminopropyl)hexahydrotriazine