The Sherwin-Williams Company’s Euronavy ES301 epoxy protective coating has been named the 2009 Affiliate Product of the Year by the Steel Tank Institute. The award was based on the coating’s use on the Thunder Horse Field offshore drilling platform in the Gulf of Mexico. The production-drilling-headquarters (PDQ) is the world’s largest production semi-submersible ever built, the company said.
“Sherwin-Williams is extremely pleased to receive this award for an application of one of our most innovative and versatile coatings,” said Brad Rossetto, vice president, marketing, for Sherwin-Williams Protective & Marine Coatings. He described the solvent-free, two-component product as a durable, moisture- and surface-tolerant coating that protects steel against corrosion, even when applied in wet and cold conditions.
Coating application was required at the offshore drilling site due to hurricane damage and the need to refurbish the top-deck plate steel. Sherwin-Williams said the coating was chosen due to the following conditions.
• Surface profiles were nearly smooth due to restrictions against abrasive blasting. The coating is reported to adhere well over marginally prepared surfaces and existing coatings, requiring no surface profile. Minimal surface preparation included hydroblasting at pressures up to 40,000 psi (ultra-high pressure jetting in accordance with SSPC-SP12).
• Coating restrictions required painting at night, with application in a moist, humid environment that included salt spray and salt fog. The coating is formulated to cure under cold and wet conditions, with no dew-point restrictions. It can be applied in temperatures ranging from 40 F to 120 F, using standard airless application, brush or roller.
The coating was applied by spray and roller in two coats, at 4.0 to 6.0 dry mils per coat. The anticipated service life of the coating system is more than 10 years in the extreme conditions of the Gulf Coast, the company said.