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
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
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
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
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
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
