Fume exposure chemical testing may not be enough for your HVAC-R equipment

in Chemical Resistance Testing, Coatings

HVAC-R coating chemical resistance is often tested using fume exposure. While this method of testing can provide information on the anticipated level of protection for HVAC-R equipment, in certain applications, spot/direct exposure tests may provide better information about your equipment’s longevity in real-world conditions. It is important to conduct spot/direct exposure chemical resistance tests because […]

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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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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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Selecting the right corrosion test for your HVAC/R protective coating

in Blog

There are several tests that can be used to measure the effectiveness of protective coatings for HVAC/R coils. These testing processes have evolved over the years as various organizations have tried to provide the most accurate information to engineers, manufacturers, and businesses that need to protect their HVAC/R investment.   ASTM B-117 Originally developed in […]

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