Improved Protective Coating for Sonar Domes.
Abstract
The sonar dome surfaces are currently coated with a standard Navy vinyl system consisting of vinyl F119 plus vinyl F121 antifouling coating applied over F117 pretreatment. The high level acoustic pulse fields generated by current high power sonar systems (SQS-26) 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 areas of numerous domes are left uncoated in order to prevent interference with the sonar. 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. Also, the component coatings of a system should have comparable flexibilities to form a well-adhering system.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 12, 1965
- Accession Number
- ADA060184
Entities
People
- N. J. Petito