Coils and heat exchangers
Coating for condenser and evaporator coils, including copper-tube/aluminum-fin and microchannel heat exchangers where appropriate for the selected system.
HereShield WB-506 by Heresite is at the center of our HVAC coating services. From residential condensers to large commercial rooftop units, DOAS systems, VRF equipment, and loose coils, Coolertech can coat units of any size. We handle disassembly, cleaning, preparation, spraying, and reassembly to protect the equipment inside and out.

Our Pompano Beach facility and on-site services support equipment of any size. We plan access, handling, and the coating scope around each unit, including coils, cabinet interiors, bases, tubing, and other specified metal surfaces.
Coating for condenser and evaporator coils, including copper-tube/aluminum-fin and microchannel heat exchangers where appropriate for the selected system.
Coating scopes can include accessible cabinet interiors, bases, tubing, and related metal components, with sensitive components protected during application.
Equipment review, cleaning, surface preparation, masking, and coating application tailored to the substrate and manufacturer’s requirements.
We manage each stage so the surfaces behind the panels receive the attention they need.
Remove panels, fan assemblies, and other components as needed to reach the surfaces included in the coating scope.
Remove oils, dirt, and other contaminants, then rinse and dry the surfaces before coating preparation.
Prepare surfaces for adhesion and mask electrical components, labels, connections, and other areas that must remain free of coating.
Apply HereShield to the specified coils and equipment surfaces, following the manufacturer’s application and drying requirements.
After the required drying time, remove masking, reinstall the components, and inspect the completed coating work.
A single-component, spray-applied coating designed for heat transfer equipment and components.
Source: Heresite’s HereShield WB-506 technical data sheet. Reported test properties were achieved on specified aluminum test panels after 2–3 weeks of air drying under the stated conditions. Salt spray test hours describe laboratory performance and do not establish a field service-life or warranty period. See full test details ↗
Explore the coil surfaces, tubing, compartments, and bases in our equipment coating work. Select any photo to view it at a larger size.
























Review the manufacturer’s product properties, preparation and application instructions, cure requirements, and chemical resistance information.
Alongside Heresite and HereShield, we use the following industrial coating systems for specified equipment surfaces and refurbishment work. Product selection depends on the substrate, exposure, and project requirements.
Part of our coating system for fan assemblies and other specified metal surfaces.
Used with our PPG coating system for specified equipment and refurbishment applications.
Additional options for cabinets, panels, bases, and metal assemblies.
Custom color matching is available using a supplied color reference or sample. Explore fan coating work →
Share the model number, quantity, location, and photos so we can review the coating scope and quote your project.