Improved Protective Coatings for Sonar Domes.
Abstract
The sonar dome surfaces are currently coated with a standard Navy vinyl system consisting of vinyl 119 primer plus 121 antifouling coating applied over 117 pretreatment. The high level acoustic pulse fields generated by current high power sonar systems cause rapid deterioration of these coating systems in service to a state which interferes with the performance of the sonar equipment. As a result, the window area of numerous domes are left uncoated in order to prevent interference with the sonar. Also to prevent accumulation of marine growth, divers are required to periodically clean the metal surfaces. However, since the metal surfaces are uncoated, corrosion is severe. The development of a coating system that has good adhesion, is unaffected by sonic pulsations is acoustically transparent, has good erosion resistance, and has satisfactory anticorrosive and antifouling characteristics, is required to overcome the present difficulties. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 15, 1964
- Accession Number
- ADA060183