
Heresite Certified Applicator


Since 1935 Heresite Protective Coatings has been an innovator in the development of high-performance specialty coatings. In 1964, Heresite was the first company to develop and apply direct-to-metal thin film coatings to aluminum- finned, copper tubed heat exchangers for the HVAC/R industry. These unique coatings increase equipment performance and service life while having less than 1% heat transfer loss. Heresite still remains the performance leader in protective coatings for air conditioning and refrigeration system industrial applications throughout the world.
Heresite Coatings extend the life of equipment multiple times, ensuring a significant economic benefit to the application to your coils, radiators or other process equipment. Plus, corrosion prevention has been shown to improve air quality and energy efficiency. For heat transfer equipment, the impact on thermal efficiency is negligible with thin-filmed coatings, so no modification (i.e. sizing or other design element) is necessary.
Heresite frequently provides upgrades to factory-applied coatings on units destined for moderately or severely corrosive environments (marine/seaside, swimming pools, landfills, wastewater, mining, and industrial plants). This service can include complete disassembly and coating of condensers, evaporators, all internal copper piping and other components as well as an upgraded topcoat provided to the exterior of the unit. The end result is a more acid resistant and chemical resistant unit.
Protective HVAC-R coil coatings can extend the lifespan of:
- Condenser coils
- Finned tube coils
- Refrigeration coils
- Evaporators and other HVAC-R components, including fans, blowers, fume hoods, dampers, louvers, grills, duct work, and piping.
HERESHIELD (WB-506)
HERESHIELD WATER-BASED AIR-DRY COATING
- It is sustainable water based thin film, low-VOC, direct-to-metal coating.
- This spray applied single component coating is typically applied to new or unfinished metal on the internal and external surfaces of HVAC-R heat exchangers and related equipment.
- Specially formulated for marine/saltwater environments and mild to medium chemical environments.
- It exhibits excellent corrosion resistance, UV resistance and weathering qualities.
- It has good adhesion to ferrous and non-ferrous metals without complex pretreatment or primers.
- HereShield offers excellent durability and salt fog performance.
- Suitable for use on a variety of heat exchanger types, including RTPF and MCHX.
- Developed as a higher performing replacement for VR-514 air dry solvent based phenolic coating.

