Improved Anti-Corrosion Coatings for Undersea Cable Connectors
Proteckt Non-Conductive Coatings (NCC), the state-of-the-art Anti-Corrosion coating for outboard wet area connectors, provides enhance bond strength and bond service life. Unlike the previous generation which was limited to flat or convex surfaces, this new process and technique applies an even coating over complex surface geometries. During the Phase II effort, testing conducted with Navy approved overmold systems, demonstrated Proteckt NCC exceeded the performance of the existing NCC in side by side testing. TRI/Austin, an advance materials research and development company, is targeting the Virginia Class submarines for qualification of the new Proteckt NCC. Once qualified, Proteckt NCC will be added to the NAVSEA PRO 20 molding manual as well as the PRO 30 NCC spray manual and become available for DoD NCC upgrades.
High moisture permeation rates through hosewall materials are a primary failure mode in fat line towed arrays. TRI/Austin Inc. demonstrated the feasibility of reducing water permeation in TPU hosewall designs in Phase I by incorporation of a TPU having a hydrophobic polymeric backbone. These results indicate water permeation can be reduced by a factor of five to ten. TRI/Austin is teaming with a major towed array supplier and the current hose manufacturer with the goal of rapid insertion of developed moisture resistant elastomers into existing/planned arrays. Materials from co-extrusion trials showed the physical and mechanical properties of the laminate hose are very similar to currently used polyether backbone TPU.