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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ASTM B-117 vs. ISO 20340 – what’s the difference?

in Blog, chemical resistance testing, Coatings, Uncategorized

ASTM B-117 was the first nationally recognized salt spray standard. Published in 1939, this salt spray test is widespread and often recognized as the “gold standard” in corrosion testing. However, ISO 20340 offers a more realistic and updated method of testing, representing a significant improvement over ASTM B-117. When the ASTM B-117 test is conducted, […]

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Heresite Develops Hydrophilic Topcoat in Response to Customer Requests

in Coatings, News

Heresite, a leader in the development of thin film corrosion resistant coatings, has launched HL-300, a robust hydrophilic coating for HVAC-R condensing equipment. The topcoat is designed to improve condensate management for reduced water carryover to allow for higher fan speeds on HVAC-R equipment. “Our customers came to Heresite for a more durable solution to […]

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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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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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Heresite Protective Coatings Nominated for 2017 Large Business/Industry Award

in News

We are pleased to announce that Heresite Protective Coatings has been nominated for the 2017 Large Business/Industry of the Year Award. The Chamber of Manitowoc County selects Business of the Year award recipients to recognize a business for its progress, success, innovation, and contribution to the community. Companies are evaluated on: • Financial growth • […]

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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 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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