Protective Coatings

  • PROTECTIVE COATINGS

    ANTI-CORROSION SOLUTIONS FOR MICROCAHNNEL HEAT EXCHANGERS

    Microchannel heat exchanger

SUSTAINED PROTECTION

In addition to the use of advanced aluminum alloys, anti-corrosion coatings play a critical role in extending the service life of heat exchangers. The coatings we offer provide reliable, long-lasting protection—even in highly corrosive environments.

RESILIENT PERFORMANCE

Coatings provide more than just protection—they expand the operating range and enhance the performance of microchannel heat exchangers by improving temperature tolerance, compatibility with a wider range of fluids, and minimizing long-term performance degradation.

GREEN STEWARDSHIP

We prioritize sustainability by employing coating technologies that are environmentally safe. From the carefully engineered chemical formulations—free from harmful substances—to the controlled application processes that minimize waste and emissions, every aspect of our approach is designed to reduce environmental impact.

MCHE electrophoretic epoxy coating

PROTECTIVE COATINGS

Electrophoretic coating, or E-coating, offers outstanding corrosion protection and significantly extends the service life of microchannel heat exchangers—even in the most aggressive environments classified as C5 and CX corrosivity zones. Its proven performance is supported by SWAAT (Salt Water Acetic Acid Test) results exceeding 6,000 hours

HIGHLIGHTS

  • 6000+ SWAAT hours (Alloy 3F05)
  • Suitable for C5/CX corrosivity zones
  • 5+ years warranty
MCHE TCP-coating

PROTECTIVE COATINGS

Delivers robust corrosion protection for heat exchangers operating in environments up to C5 corrosivity class (SWAAT hours: more than 4000). This cost-effective treatment offers long-term durability, excellent adhesion for a wide range of topcoats, and maintains thermal performance without measurable impact

HIGHLIGHTS

  • 4000+ SWAAT hours (Alloy 3F05)
  • Excellent for C4/C5 environments
  • Zero performance loss
MCHE nano-scale coating

PROTECTIVE COATINGS

Engineered for maximum corrosion protection in the most aggressive environments, including C5 and CX zones. This advanced coating exceeds 6000 hours in SWAAT testing and is suitable for both internal and external surfaces of heat exchangers. It offers zero impact on thermal performance, hydrophobic behavior, UV resistance, and a smooth, refined finish

HIGHLIGHTS

  • 6000+ SWAAT hours (Alloy 3F05)
  • Excellent for C5/CX environments
  • For inner and outer surfaces
MCHE nanoscale coating

Kaltra creates a leading edge with nanoscale coating for microchannel heat exchangers

Nanoscale coating: a breakthrough in protecting microchannel heat exchangers against corrosion and environmental degradation.
Microchannel coil

The effect of protective coatings on the thermal-hydraulic performance of MCHEs

Kaltra's study shows e-coated microchannel coils maintain thermal-hydraulic performance and corrosion resistance, outperforming TCP-coated and bare coils during service life.
MCHE assembly

Superhydrophobic microchannel heat exchanger for heat pump performance enhancement

Superhydrophobic coating delays frost formation and makes microchannel heat exchangers a beneficial choice for outdoor evaporators in heat pump systems.
E-coated microchannel heat exchanger

What is e-coating and how does it work?

Learn how e-coating (electrocoating) protects microchannel heat exchangers from corrosion. Discover the process steps, key benefits, and when e-coating is essential for high-corrosivity environments.
Hydrophilic-treated MCHE

Hydrophilic topcoat for microchannel heat exchangers

Hydrophilic coating for microchannel heat exchangers: increases performance under wet conditions, improves condensate drainage and enhances corrosion resistance.
Heat exchanger coating

Kaltra puts forward innovative high-tech coating to improve heat exchanger performance

Kaltra introduces a new high-tech surface coating that delivers improved heat transfer rates and anti-corrosion properties for microchannel heat exchangers.
Microchannel coil

Experimental investigation for microchannel heat exchangers corrosion in the coastal environments

One of the biggest factors of the growing popularity of microchannel heat exchangers is the high corrosion resistance of aluminum, which is achievable through the careful selection of aluminum alloys, surface treatments, and other protective measures.
Fluid coils

Anti-corrosion treatment for microchannel dry coils

Kaltra starts offering protective coating for inner surfaces of its microchannel water coils developed for improved corrosion resistance and longer operating lifespan.
E-coated microchannel coil

High-grade corrosion protection for heat exchangers

Kaltra offers microchannel heat exchanger anti-corrosion treatment for HVAC equipment to ensure highest level of protection.
E-coated microchannel coil

Heat exchanger protection with electrocoating

Electrocoating offers extremely high corrosion resistance for all-aluminum microchannel heat exchangers, making them the most suitable solution for use in extra-corrosive environments.
Microchannel coil

Corrosion protection for microchannel heat exchangers

Corrosion resistance of the microchannel heat exchangers in highly polluted environments; protective coatings and special treatments.