An immersion coating process in which the paint is deposited by means of an electric current, guaranteeing high corrosion resistance.

Which materials can be treated?

Mainly steel, iron, cast iron, aluminium and other conductive metal alloys.

Can e-coating be combined with other treatments?

Yes, it is often used as a primer before powder or liquid coating.

How thick is the cataphoretic film?

Between 15 and 30 μm, uniform even on complex geometries.

Is it an eco-friendly process?

Yes, e-coating uses water-based paints and produces limited emissions.

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Anti-corrosion immersion coating

E-coating (cataphoresis).

Zoccarato Industrial Coatings provides cataphoresis (e-coating) for metal components with one of the largest plants in Europe: uniform coverage even on the most complex geometries, high corrosion resistance and a process controlled at every stage, from pretreatment to curing.

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Key strengths

The best protection against corrosion
Our plant has 11 process stages and is among the largest in Europe
Ideal even for the most demanding sectors
Ideal for small and large parts alike
An epoxy-resin based treatment

Agricultural machinery parts emerging from the e-coating tank

What is e-coating.

E-coating is an anti-corrosion immersion coating treatment, effective on metal components in iron, steel, cast iron, aluminium and alloys. Through an electrochemical process the paint is deposited uniformly even in the hardest-to-reach areas, guaranteeing complete protection against corrosion, oxidation and wear.

This technology is widely used in sectors where resistance to the elements is essential, such as automotive, agriculture, components, fluid handling and metal fabrication.

Advantages of the e-coating treatment

Anti-corrosion protection even in extreme environments
Total coverage, including cavities, edges and internal areas
Uniform, controlled thickness of the protective film (15–30 μm)
Excellent adhesion for subsequent finishes (powder or liquid coating)
An eco-friendly process, with water-based paints and low environmental impact

An operator prepares parts that are about to be e-coated

E-coating: the application process.

A high-tech automated plant

Our e-coating treatment is carried out by immersion in an automated plant remotely controlled via PLC, supervised by highly qualified staff. The complete cycle comprises 11 stages, including immersion degreasing, essential to ensure a deep cleaning of the parts.

One of the distinctive elements of our process is the zinc-phosphate surface conversion, approved by Caterpillar, which deposits a microcrystalline layer giving corrosion resistance of up to 700 hours according to ISO 9227, together with excellent mechanical performance and flexibility.

Being a cathodic electrodeposition treatment, it can only be applied to metal parts, including steel, cast iron, aluminium and conductive alloys. E-coating also improves the adhesion of subsequent finishing coats.

The phases of the treatment

The process consists of several phases:

Pretreatment: degreasing, zinc phosphating, passivation.
Cataphoretic coating: the parts, connected to the negative pole, are immersed in a tank with electrodes at the positive pole, where the electric field drives the deposition of the paint.
Rinsing with ultrafiltrate: to recover the liquid and minimise losses.
Oven curing: the paint is permanently fixed at high temperature.

E-coating protects against corrosion and rust.

Added value for every component

The e-coating treatment is essential for parts exposed to critical environmental conditions such as water, salt, snow, sun, wind and chemical agents. It protects surfaces from oxidation and rust, extending the service life and the value of the product.

It is not just an aesthetic finish but an essential technical treatment, required by industrial specifications in the most demanding sectors:

Automotive and industrial vehicles
Agricultural and earthmoving machinery
Marine and shipbuilding
Furniture and metal fabrication

After years of refinement, our plant is today one of the largest in Europe for production capacity and treatable dimensions, while maintaining a consistently high quality standard.

Why choose Zoccarato Industrial Coatings

Certified processes, compliant with the main technical specifications
Integration with powder and liquid coating
Full traceability and advanced quality control
Many years of experience in contract coating for the main industrial sectors

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E-coating FAQ.

What is e-coating?: An immersion coating process in which the paint is deposited by means of an electric current, guaranteeing high corrosion resistance.
Which materials can be treated?: Mainly steel, iron, cast iron, aluminium and other conductive metal alloys.
Can e-coating be combined with other treatments?: Yes, it is often used as a primer before powder or liquid coating.
How thick is the cataphoretic film?: Between 15 and 30 μm, uniform even on complex geometries.
Is it an eco-friendly process?: Yes, e-coating uses water-based paints and produces limited emissions.

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