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Frequently Asked Questions

Selecting the right HVAC-R corrosion protection can feel complicated, especially with so many options for coatings, applications, warranties, and environmental considerations. To help simplify the process, we’ve gathered answers to some of the most common questions from engineers, contractors, building owners, and OEMs who trust Heresite for reliable, long-lasting protection.

What industries use Heresite protective coatings?
Heresite coatings are trusted across HVAC-R, marine, transportation, and industrial applications. They protect metal components from corrosion caused by salt air, chemicals, and high heat, extending equipment life and reducing maintenance costs.
Yes. Heresite coatings like P-413 are engineered for high-performance environments and can withstand continuous exposure up to 400°F. This makes them ideal for heat-intensive applications such as HVAC coils, condensers, and industrial equipment.
Heresite offers both water-based and solvent-based options to fit different performance and environmental needs. Water-based coatings such as HereShield are low-VOC and eco-friendly, making them a sustainable choice for many applications. Solvent-based coatings like P-413 offer enhanced chemical and corrosion resistance for highly demanding environments.
Each coating is professionally applied using a full immersion process that includes dip or flow coat techniques. This ensures even coverage across every surface, maximizing protection, adhesion, and long-term corrosion resistance.
Heresite coatings can be applied to coils, fins, enclosures, cabinets, and other metal parts. These solutions are especially effective for HVAC systems and industrial equipment exposed to moisture, chemicals, or temperature extremes.
Yes, Heresite offers limited warranties based on the coating and application. Contact us for specific terms.
All Safety Data Sheets (SDS) are available in the Resources section of our website. You can download the SDS for your product at any time or contact our support team for assistance.
Heresite has been a leader in corrosion-resistant coatings since 1935, combining proven chemistry with real-world results. Learn more about our history and testing standards to see why OEMs and engineers trust Heresite for long-term performance.
Yes. Coatings like P-413 and HereShield provide exceptional resistance to salt spray, acid rain, and chemical exposure. They are ideal for protecting HVAC equipment and metal parts in coastal, marine, or industrial environments.
Request a quote through our contact page or call our sales team. We’ll tailor pricing to your application and coating needs.
Yes, Heresite develops custom solutions for specific performance needs. Our team works directly with OEMs and engineers. Contact us to find out more.