Coatings - Heresite Protective Coatings, LLC

Why use a hydrophilic HVAC topcoat?

Management of condensation and moisture is critical to ensuring the efficient function of HVAC equipment. Equipment operating in high temperature, submerged, or salty environments can suffer from condensation issues, which exacerbate the corrosion process, or lead to the creation of large waer droplets, which force the fan to work harder. 

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What you need to know about ISO Corrosivity Categories

Corrosion testing on HVAC coatings can be conducted according to a number of standards, including ASTM-B117, ISO 9227, ISO 12944-6, and ISO 20340. Of these tests, the one we believe represents actual service environments most closely is ISO 12944-9 (formerly ISO 20340) vs. the more common ASTM B-117. ISO classifies

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Why copper pipe protective coating is important

Coating the coils of an HVAC unit is a known to extend the unit’s life. However, the performance of an HVAC unit is about more than just the coil. HVAC units are constructed from a variety of metals. These dissimilar metals react to environmental conditions in a variety of ways.

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Heresite’s P-413 Approved for NSF/ANSI 51 Rating

Heresite, a leader in the development of thin film corrosion resistant coatings, has now become the only company with a NSF/ANSI 51: Food Equipment Materials rated phenolic-epoxy for HVAC-R coils. The NSF rating establishes that Heresite’s P-413 coating has been shown to meet the requirements for materials and finishes used

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Are you getting the HVAC-R coating you expect?

For over 80 years, Heresite coatings have been used to protect HVAC-R equipment in the harshest environments. We’re proud of our history, and we’re proud to continue to offer products like P-413, which recently met the demanding offshore marine requirements of ISO 20340.  These are tested, proven, real-world results. Unfortunately,

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