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Baltimore Aircoil Co. highlights the TriArmor Corrosion Protection System. This patented system offers three layers of protection, starting with G-235 galvanized steel, the heaviest commercially-available galvanized steel. Universally recognized for its strength and durability, it offers excellent service life under normal operating conditions, with proper maintenance and water treatment. The second layer is a thermosetting hybrid polymer baked onto the galvanized steel to create a durable barrier. This polymerized coating has been tested to withstand 6,000 hours in a 5% salt spray without blistering, chipping, or losing adhesion. The third layer, a polyurethane barrier, is a factory-applied, corrosion-resistant, impermeable coating that ensures a seamless basin.