ZINC INORGANIC SILICATE COATINGS, WITH AND WITHOUT TOPCOATS, EXPOSED TO A MARINE ATMOSPHERE.
Abstract
Ten zinc inorganic coatings, with and without topcoats, were applied to sandblasted steel and exposed to a marine atmosphere in Port Hueneme, California, Kaneohe, Hawaii, and Kwajalein, Marshall Islands. The necessity of using a wash primer over the zinc inorganic coatings when applying certain MIL-SPEC topcoatings was demonstrated. During 2 years of exposure, one proprietary epoxy topcoat nearly failed along a scribed cut; however, in general, all three proprietary vinyl and four of five proprietary epoxy topcoats gave excellent protection. Two of the vinyl topcoats have blistered slightly, which may result in loss of bond. The testing is continuing, and additional reports on the performance of these coatings will be forthcoming. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1967
- Accession Number
- AD0824226
Entities
People
- Carl V. Brouillette
Organizations
- Naval Facilities Engineering Service Center