Protective coatings for the HVAC sector: cataphoresis as the ideal solution
Contact usHeating, ventilation and air conditioning (HVAC) solutions represent a significant challenge in the field of industrial painting. Between hard-to-reach areas, sharp corners, manageable coating thicknesses and the need for extreme corrosion protection, the challenges the sector faces are often critical. Let's see together why cataphoresis, thanks to its characteristics, represents the ideal surface treatment for this type of product sector.
Cataphoresis is an exceptional solution for coating the batteries and coils of HVAC (Heating, Ventilation and Air Conditioning) units, understood as the heating, refrigeration and air conditioning sector.
Cataphoresis is ideal for these applications because it is an immersion process in which metal parts are introduced into a paint bath. An electric current is applied to this bath to cause the paint particles to settle on the metal, after which the piece is polymerized in a special oven. This is a process made up of different phases and completely automated, for further information click here.
By varying the applied current, the thickness of the coating can be controlled with great precision.

Cataphoresis painting improves the performance of heat exchangers
Thin coatings have proven to be better for heat transfer. With cataphoresis you achieve both the corrosion resistance needed to extend the battery's useful life cycle and the heat transfer efficiency needed to make batteries perform well in everyday operations.
Cataphoresis provides a smooth, consistent, long-lasting coating that penetrates deep into all cavities and covers every exposed surface of the heat exchanger, including fin edges, without creating “bridges” to adjacent fins.
The advantages of cataphoresis for this type of application include superior corrosion resistance, uniform and controllable film coverage, and the ability to uniformly coat complex parts. A further advantage of the cataphoresis process is its high efficiency: thanks to the high level of automation of our cataphoresis system, it is possible to process a considerable quantity of articles in a short time.

In summary, among the strong points of cataphoresis for the HVAC sector we find:
Penetrates hard-to-reach areas and sharp metal edges;
Virtually all unused paint is recoverable;
The coating thickness is precisely controlled and allows for uniform and consistent layers across multiple product runs;
The level of corrosion protection is very high (up to 700 hours according to ISO 9227);
The possibility of generating a thin coating facilitates the heat transfer, which is necessary for the exchangers to function correctly.
The list of items related to the HVAC sector that can be painted using cataphoresis includes:
Heat exchangers
Refrigeration coils
Radiators
Finned tube coils
Evaporators
Capacitor batteries
Fans and blowers
Air treatment equipment.

Zoccarato Industrial Coatings: 60 years of experience in the industrial painting sector
Our cataphoresis system satisfies the needs of customers in every product sector, even with the most complex shapes, such as that of the HVAC sector.
With 60 years of experience in the industrial painting industry, we can handle repeat, high-volume orders, giving your items a high-end finished look that increases their durability and appeal to end customers.
Do you want to receive more information? Write to us at info@zoccaratoverniciature.it
More articles

E-coating or Powder Coating? 3 Factors to Consider Before Choosing

Why does metal corrode? The 7 factors not to be underestimated

Metal cabinets for data centers in a marine environment: why the C5-H cycle is fundamental

Cataphoresis: the questions you didn't know you had (and the answers that make the difference)
Have a project in mind?
Tell us about your needs: our team will guide you to the most suitable treatment.
Contact us