Cottrell offers new Triple Coat paint system In an effort to fight environmental corrosion issues, Cottrell is now offering a Triple Coat paint system. In addition to our epoxy primer and urethane top coat, Cottrell starts the process by applying a Reinforced Inorganic Zinc Primer to the already blasted metal. The Zinc Primer has exceptional corrosion resistance, provides cathodic protection and is designed specifically for steel structures. This process also increases the overall dry film thickness on the equipment. Cottrell can also coat the inside of the bottom rails! Contact your sales representative today for more news on this exciting new option. Our Expertise is your Advantage on the Road.