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Choosing the best HVAC-R protective coating for your particular environment and application is an important decision. At Heresite, our HVAC-R coating products are continually evolving to provide you with the best possible solution for your environment. Be sure you select the most appropriate solution when specifying a coating for a particular application by consulting with our experts. We will work with you to ensure your equipment is protected with a coating that is well-matched to your environment.
Our experts will help you evaluate your needs by considering:
The following table compares test results and uses for our four most popular products, including:
A single-component air-dry coating offering faster drying, better corrosion resistance, extremely low VOC, and can be used for spraying or dipping.
A thin film, high performance coating used principally for coil and radiator heat exchangers as well as other air and fume handling equipment fabricated of light gauge metals. It is the first HVAC-R coil and radiator coating to meet the ISO 12944-9 (formerly ISO 20340) Standard for severe offshore marine environments.
A two-component direct-to-metal coating for excellent adhesion and high resistance to UV and corrosive environments. The highest-performing non-baked HVAC coating on the market.
A topcoat that reduces the contact angle of water exposed to the surface. This robust coating provides superior hydrophilic protection in high salt spray or immersion environments, reducing water carryover downstream from a wet coil or coil covered with condensate.
| P-413 | ES-600 | VR Next Generation | VR-514 | |
| Chemistry | Phenolic Epoxy | Epoxy Silane | Proprietary | Phenolic |
| Cure Mechanism | Oven Cured | Chemical Cure; Air-Dried | Air-Dried | Air-Dried |
| Method of Application | Immersion, flow or spray | Spray | Immersion, flow or spray | Spray |
| Cyclic offshore (ISO 12944-9) (aluminum + copper) | Pass 25 weeks (4,200 hrs) | Pass 25 weeks (4,200 hrs) | Pass 25 weeks(4,200 hrs) | NT |
| Static Salt Spray (ASTM B-117) (hours) | 6,000+ (test panel up to 18,000) | 3,500+ | 5,000+ | 2,000 |
| Humidity (ASTM D-2247) (hours) | 5,000+ | 5,000+ | 1,000+ | 250 |
| QUV (ASTM D-4587) (hours) | 3,000+ (with UC-5500) | 5,000+ | 500+ | |
| QUV-C Sterilizer (hours) |
1,500 |
NT | NT | NT |
| ASTM G-85 | 3,000+ | NT | NT | NT |
| Solvent Resistance (ASTM D5402) (MEK) | 100+ | 100+ | <10 | <10 |
| Adhesion (ASTM B-3359) | 5B | 4B/5B | 5B | 5B |
| Flexibility (ASTM D-522) | >1/4” | >1/4” | >1/4” | >1/4” |
| Hardness (ASTM D-3363) | 5-6H | 2H-4H | 4H | 4H |
| Temperature Limitation | 400F (250C) | 200F (93C) | 200F (93C) | 200F (93C) |
| DFT (mils) |
1.0 – 1.5 |
1.0 – 1.5 | 1.0 – 1.5 | 1.5 – 2.5 |
| Chemical Resistance | Immersion and fume | Fumes | Fumes | Fumes |
| NSF | Yes | Approvable | Approvable | Approvable |
| VOC lbs/gallon (as-applied) |
2.3 |
1.1 | <1.0 | 2.8 |
NT = Not Evaluated Yet
With the broadest product portfolio in the industry, we can match your needs to our products and find a coating solution that truly protects in even the harshest environments. Contact us for assistance selecting the coating that is right for you.