Why use a hydrophilic HVAC topcoat?

in Coatings

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. Hydrophilic (or water-loving) coatings or […]

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What you need to know about ISO Corrosivity Categories

in Blog

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 environments in corrosivity categories of […]

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Heresite to Launch New Spray-Applied Coating Options at 2019 AHR Expo

in Coatings, News

Heresite, a leader in the development of thin film corrosion resistant coatings, will launch ES-606, a spray-applied coating for HVAC-R coils as well as HVAC-R cabinets/components at the 2019 AHR Expo, to be held January 14 – 16, 2019 in Atlanta. ES-606 is designed for use as a standalone spray for coils, cabinets, and components […]

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New Test Results Show Effectiveness of Heresite Coating After 1,500 Hours of UV-C Exposure

in Chemical Resistance Testing, News

Heresite, a leader in the development of thin film corrosion resistant coatings, recently completed a UV-C exposure test on its P-413 coating, both with and without a topcoat. The test was conducted in conjunction with Sanuvox Technologies laboratory. UV-C lights are used in many HVAC systems to sterilize HVAC coils and recirculated air. UV-C sterilization […]

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Why copper pipe protective coating is important

in Blog, Coatings

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. Depending on the metal used […]

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Three Questions to Ask When Coating Oversized HVAC-R Units or Coils

in Blog, Coatings

Coating extremely large HVAC-R units or coils can be difficult. Their size (both dimensions and weight) makes the units/coils difficult to move and many coating applicators find it difficult to thoroughly apply coatings to protect them from corrosive elements. A large HVAC-R unit/coil is clearly a big investment, which makes the need to apply protective […]

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Heresite Releases Whitepaper “Choosing an HVAC-R Coating for Marine Environments”

in News

Heresite, a leader in the development of thin film corrosion resistant coatings, has released a new whitepaper, Choosing an HVAC-R Coating for Marine Environments. The whitepaper was developed to answer common questions around evaluating the options for HVAC-R coil coatings in offshore and coastal marine as well as other corrosive environments. “As testing methods have […]

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After 2.5 year exposure test, Heresite’s P-413 panels show no signs of wear

in Blog, Chemical Resistance Testing, Coatings, Uncategorized

To further expand on Heresite’s expansive chemical resistance guide, P-413 coated steel, copper, and aluminum panels were placed in a municipal wastewater treatment facility to simulate sewage fumes. Panels were placed at the point where raw sewage is pumped into the facility and screened; this results in significant hydrogen sulfide exposure, one of the harshest […]

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

in News

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 in the manufacture of commercial […]

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Are you getting the HVAC-R coating you expect?

in Blog, Coatings

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, being an early innovator and […]

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