Corrosion can be costly, as evidenced by the one-half trillion dollar price tag incurred yearly by consumers and companies alike – roughly 3% of the US annual GDP. Preventing corrosion would seem to be an obvious solution to avoiding these enormous costs, but how? The answer – specifically for heat transfer equipment – is provided by Heresite Protective Coating P-413.
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
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,
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
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,
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
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
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
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.
