Manitowoc, Wis. – Heresite, a leader in the development of thin film corrosion resistant coatings, has launched WB-506, a low-VOC direct to metal coating. WB-506 offers multiple application options including spray, dipping, or flooding. It exhibits excellent corrosion resistance, UV resistance and weathering qualities, along with good adhesion to ferrous and non-ferrous metals without complex pretreatment or primers.

“Our goal was to develop a water-based coating that provides the high levels of corrosion resistance HVAC-R experts have come to expect from Heresite. WB-506 is specially formulated for marine/saltwater environments. It is splash resistant to a range of acids and inorganic salts, and offers excellent durability and salt fog performance,” states Peter Hellman of Heresite Protective Coatings.

Tests performed on WB-506 included cyclic offshore testing (ISO 12944-9) at 25 weeks or 4,200 hours, ASTM B-117 (5,000+ hours), crosshatch adhesion, and impact resistance with positive results.

About Heresite Protective Coatings
Established in 1935, Heresite Protective Coatings has spent more than 80 years developing and perfecting protective coatings that solve corrosion problems in a variety of applications including commercial heating, cooling, refrigeration or other industrial process coils, as well as components that are regularly exposed to corrosive conditions, including coastal and marine environments. The company’s ongoing focus on technology leadership, rigorous quality and process control, and customer satisfaction has led to the development of multiple industry-leading coatings based on phenolic, epoxy phenolic, urethane and silicone chemistries. Heresite coatings not only provide protection in corrosive high salinity marine conditions, but industrial applications such as wastewater treatment, swimming pools, food processing, mining, oil and gas, semi-conductor production, pulp and paper, textile factories and other environments where these systems are exposed to chemical fumes. For more information visit heresite.com or call 800-558-7747.


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