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’s ES-600 meets ISO 12944-9 (formerly ISO 20340) Standard

in Blog, Coatings

ES-600 offers high performance and spray application Manitowoc, Wis. – Heresite’s ES-600, a high-performance epoxy-silane specially designed to provide superior performance in demanding environments, has successfully me the ISO 12944-9 Cyclic Offshore Test protocol. The ISO 12944-9 (formerly ISO 20340 test) for C5-X environments cycles the coating between salt spray, UV radiation, and temperature shocks […]

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Air quality, UV light for HVAC systems, and corrosion protection

in Blog, Chemical Resistance Testing, Coatings

Many facility engineers are interested in the possibilities of using UV-C light to help prevent the spread of COVID-19. UV-C light has been shown to be a proven method controlling airborne infection. It works by destroying the outer protein coating of the SARS-Coronavirus. Right now, the effectiveness of UV-C on the novel SARS-CoV-2 (COVID-19) virus […]

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Choosing the right Heresite coating

in Blog, Coatings

Learn more about Choosing An HVAC-R Coating for Marine Environments » Learn more about Corrosion Protection Testing » Choosing the best HVAC-R protective coating for your particular environment and application is an important decision. At Heresite, our HVAC-R coating products are continually evolving to provide you with the best possible solution for your environment. Be sure you […]

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What is salt spray testing and how does the process work?

in Blog, Coatings

Salt spray testing is a laboratory simulation of a corrosive saline environment. It is used as an accelerated means of testing the ability of surface coatings to withstand atmospheric corrosion. Also known as salt fog testing, it is one of the oldest testing methods used in the HVAC-R coatings industry, and for this reason, is […]

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What is Heresite?

in Blog, Coatings

Much like your favorite brand of facial tissues or fruit-flavored gelatin, the word Heresite has come to represent a type of HVAC-R coating no matter who it’s manufactured by. However, Heresite isn’t a specific coating – it’s a coating manufacturer! The confusion makes sense. Heresite was founded in 1935. That means that we’ve been making […]

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Three reasons to apply protective coating to complete HVAC units

in Coatings

HVAC systems are used in places where people need protection from the elements, or the environment must be stabilized to provide general cooling or ideal conditions for food preparation or pharmaceuticals. However, while air handling units (AHUs) benefit the people who live or work in the improved environment they create, the units themselves are exposed […]

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How to find a C5 or CX (extreme marine) rated coating

in Blog, Coatings

Learn more about Choosing An HVAC-R Coating for Marine Environments » Selecting the correct corrosion standard is an important part of specifying HVAC coil coatings, particularly in environments where an extreme coastal HVAC coating is needed. For over 100 years, ASTM B-117 had been widely recognized as the “gold standard” in corrosion testing – at […]

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Studies show ASTM-B117 salt spray test does not correlate to real-world environments

in Blog, Chemical Resistance Testing

In 1995, The Society for Protective Coatings (SSPC) published a paper that concluded, “It is obvious that ASTM-B117 Salt Spray (Fog) Testing and similar methods offered a rapid but unreliable means for predicting coating behavior.”  For the 20+ years since that paper was published, the ASTM B-117 salt spray procedure has continued to be tested […]

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