I have gotten a couple of requests for trying to protect coils in some harsh environments. The best way to do this is to have the manufacture produce the product with a coil protectant. That way the coil is professionally applied. The problem is that we have equipment that the option for a coil like that is not available.
Protecting Coils in Harsh Environments
When it comes to protecting HVAC coils in challenging environments, the best solution is to have the manufacturer apply a professional coil protectant during production. Factory-applied coatings ensure even coverage and lasting protection. However, this option isn't always available for certain equipment models.
DuraCoil: A Reliable Field Solution
For equipment that doesn’t come with factory-coated coils, DuraCoil by Nu-Calgon offers an effective alternative.
Product Details:
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Part Number: 4083-91 (Aerosol Spray)
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Application: Simply spray the coil surface and allow it to dry properly.
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Maintenance: Reapply every 6 to 12 months, depending on environmental severity.
Why Use DuraCoil?
DuraCoil is a specially formulated, air-dry phenolic coating designed to extend the life of HVACR coils and components in corrosive environments. This gray-colored coating has been field-tested and used successfully by OEMs for years.
Ideal Applications:
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Coastal regions (exposed to salt air)
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Industrial or agricultural settings (exposed to chemicals or dust)
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Refrigeration systems (protection from food acids)
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New installations without factory-applied coatings
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Repairing damaged protective coatings on existing equipment
By using DuraCoil, contractors can effectively protect coils from corrosion, improve system longevity, and reduce costly maintenance issues in harsh environments.

