An epoxy resin formulation completely free of organic solvent was applied to carbon steel coupons using supercritical carbon dioxide (CO2) as the volatile solvent. Steel coupons coated in this manner were compared to coupons coated with a standard military specification marine primer (MIL-P-24441) during exposure to aerated 0.5 M sodium chloride (NaCl). The solvent-free coating protected the steel from corrosion in this environment as well, if not better than, the solvent-based primer.

Subject
Primers, Coatings, Steel coupons, Spray coating, Sodium chloride, Coating thickness, Epoxy coatings, Film formation, Salt spray corrosion testing, Steel, Corrosion resistance, Epoxies, Electrical resistance
Keywords:
carbon dioxide, carbon steel, coating, epoxy, marine applications, MIL-P-24441, primer, sodium chloride, solvent, steel
NACE International
1999
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