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15.5-Year Inspection Reveals the Effectiveness of a Single-Coat Epoxy

In the mid-1990s, the US Navy’s technical community, led by Naval Sea Systems Command (NAVSEA), recognized existing coatings used to protect the inside of ships’ tanks were failing on average 5-8 years after application. The high cost to blast and recoat over 11,000 tanks every 5-8 years, not counting submarines and aircraft carriers, was prohibitive. To address this issue, the Navy conducted a study to analyze the problem and decided to replace these legacy coatings with high solid epoxy coatings.1

Product Number: 51322-17996-SG
Author: Guy Zanti
Publication Date: 2022
$20.00
$20.00
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In 2000, the US Naval Research Laboratory (NRL) for Corrosion Science & Engineering began work on the Future Naval Capabilities’ Single Coat Program. The program aimed to reduce corrosion damage and maintenance time by replacing legacy, solvent-based coatings with high solids, single coat, rapid cure, MIL-PRF-23236D Type VII high solids epoxy coatings to the fleet.

In 2005, a US Navy ship’s seawater ballast tank coating had failed and needed replacement. The failed coating (applied in 1996) was replaced by a 100% solids epoxy coating system and the ship was returned to service. Follow-up inspections on the coating’s performance were conducted 15 months, 7.5 years, and 15.5 years after the lining was applied.

The 100% solids, single coat epoxy coatings system demonstrated that it was meeting the Navy’s goals of minimizing failures and reducing maintenance costs.

In 2000, the US Naval Research Laboratory (NRL) for Corrosion Science & Engineering began work on the Future Naval Capabilities’ Single Coat Program. The program aimed to reduce corrosion damage and maintenance time by replacing legacy, solvent-based coatings with high solids, single coat, rapid cure, MIL-PRF-23236D Type VII high solids epoxy coatings to the fleet.

In 2005, a US Navy ship’s seawater ballast tank coating had failed and needed replacement. The failed coating (applied in 1996) was replaced by a 100% solids epoxy coating system and the ship was returned to service. Follow-up inspections on the coating’s performance were conducted 15 months, 7.5 years, and 15.5 years after the lining was applied.

The 100% solids, single coat epoxy coatings system demonstrated that it was meeting the Navy’s goals of minimizing failures and reducing maintenance costs.