A method and structures are provided for implementing hose-to-barb connections for water cooling hoses. The water cooling hose is assembled with a barbed fitting to create an interface free joint between a hose material and the barbed fitting. The hose material contains microcapsules which contain a catalyst and/or a combination of microcapsules which contain monomer and catalyst in separate microcapsules that promote polymerization when ruptured. The hose material contains functional groups that can be polymerized with a functionality that is contained on the hose surface. This process creates a secure interface free covalent bond, thus preventing leaks from occurring.