COVID-19, UV-C light and Coil Coatings: A New Era in Commercial HVAC.

For HVAC professionals, protecting coils from environmental and galvanic corrosion has long been a priority, typically achieved through specialized coatings. With the rise of the pandemic, however, these protective measures are being pushed to their limits. As companies reopen and upgrade their HVAC systems to minimize airborne virus transmission and improve indoor air quality, UV-C light has emerged as a key tool. Known for its ability to neutralize pathogens by disrupting their DNA structure, UV-C light has shown promise in combating viruses like SARS-CoV, the predecessor of today's SARS-CoV-2, or COVID-19.

Despite its effectiveness, UV-C light presents a unique challenge for HVAC systems. While it doesn't affect the metallic components of HVAC coils, it can compromise the coatings designed to shield them from corrosion. Standard testing methods like ASTM B-117 and ISO 12944-9, which assess corrosion resistance, don't account for UV-C exposure. For instance, ISO 12944-9 simulates conditions using UV-A light instead of UV-C, while ASTM B-117 focuses solely on salt spray and humidity tests without UV considerations.

Introducing Heresite

Heresite, a pioneer in HVAC coil coatings, has risen to the occasion by developing a solution that stands up to UV-C light. Their P-413 coating has undergone rigorous testing, collaborating with Sanuvox Technologies to expose the panels to 1,500 hours of UV-C exposure. The results were impressive: both the P-413 and P-413 + UC-5509 panels retained their integrity, showing minimal fading without any loss of adhesion or flexibility. This breakthrough underscores Heresite's commitment to innovation and durability.

Our Trusted Partner

At Nationwide Coils, we've relied on Heresite for over 16 years for coatings that deliver unmatched reliability. Whether manufacturing custom coils or OEM replacements, Heresite has consistently provided us with high-quality, long-lasting solutions. Their latest advancements in UV-C-resistant coatings further solidify our confidence in their leadership within the industry.

If you're considering integrating UV-C light into your HVAC system to boost indoor air quality, ensure your coils are safeguarded with a coating that can handle UV-C exposure while maintaining corrosion protection. Heresite's P-413 is the answer. To learn more about the full test results, click here.

Need a coil quote? Contact us today to get started!