Corrosion protection coatings when properly applied to coils and cabinets are a cost effective method to extend the life of the cooling system and preserve the owner's investment.

Marc Urethane Protection Coating has a proven track record of more than 25 years providing superior corrosion protection in industrial and marine environments and are resistant to many acids, solvents, salts, and other contaminants.

Unlike brittle dip-and-bake phenolic coil coatings, the Marc Urethane Protection Coating is tough, flexible, and provides additional protection to the fin edges. And unlike spray-in-place coatings, Marc’s saturating flow-coating system assures full, penetrating coverage of the interior sections of the coil.

Refrigerant System Coating - Specify a Refrigerant System Coating - not just the coils.  When the Marc Urethane Protection Coating is specified with our air conditioners, the coating is applied to the evaporator and condenser coils, compressor(s), and all interconnecting copper tubing, and not just the coils alone as from specialty applicators. This ensures the most vulnerable parts of the system, including the tubing soldered joints, are protected as well.

Complete Unit Coating - For maximum protection specify a Complete Unit Coating for the air conditioner.  For extreme conditions the entire air conditioner should be completly coated with the Marc Urethane Protection Coating.  In this case, the entire refrigerant system, the cabinet, inside and out, and all of the components in the air conditioner are prepared and coated individually prior to assembly in accordance with the Marc Urethane Protection Coating Procedure.  To complete the system, the coated air conditioner is assembled with stainless steel fasteners.

View the Marc Urethane Coating Specification & Procedures

Adsil MicroGuard® - Marc is a licensed installer of the Adsil MicroGuard® HVAC/R inorganic protective treatment system. The Adsil coating is designed to resist the corrosive effects of salt laden coastal air and industrial acidic environments, and inhibits mold and mildew growth.

Adsil may be applied to copper and aluminum coils, exterior painted cabinet surfaces, and other components inside the air conditioner. Typically the Adsil cabinet coating is clear, revealing the original color, and leaves a glossy sheen. For the coils, a blue tint is added to the Adsil coating product so as to make it more discernable. Recommended dry film thickness for the coils is 6-8 microns.

Marc applies the Adsil coating in our controlled corrosion coating facilities and treats the coils with our flow-coating process.

Adsil MicroGuard® has been tested to ASTM B 117 Salt Chamber Testing and has performed in excess of 6,000 hours. Also tested to ASTM G 21 Fungal Growth, Adsil showed no spore growth.

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