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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Heat transfer test results for Heresite’s P-413

in Blog

Heat transfer is an important consideration when selecting a protective coating for HVAC-R condensers or evaporators. A protective coating, when applied properly, can extend the life of HVAC-R coils by preventing corrosion with negligible impact on heat transfer. In 2017, we participated in a wind tunnel test for our P-413 baked phenolic epoxy coating. This […]

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Heresite’s New P-413 Becomes First HVAC-R Coil/Radiator Coating to Meet ISO 12944-9 (formerly ISO 20340) Standard

in News

Offshore paint qualification standard approximates real-world environmental conditions Manitowoc, Wis. (June 23, 2017) – Heresite, a leader in the development of thin film corrosion resistant coatings, has successfully met the demanding requirements of ISO 20340 – regarded as a key corrosion standard for performance coating systems destined for offshore structures, the most severe marine/salt air […]

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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 20340. ISO’s testing standards for protective paint systems were developed through long-term material weight loss and surface […]

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