functions such as insulation, heat resistance, and durability with a uniform coatingElectrodeposition coating with  film - Coating agent that adds functions to metal parts

• What is electrodeposition paint?
• Product Summary
• Features that can be granted
• Polyimide Anionic Type Electrodeposition Coating (Development Product)
• Supported materials
• Document DL / Inquiries

What is electrodeposition paint?

Electrodeposition paint is a paint that forms a coating film by electrodeposition of resin particles dispersed in water-based paints.
By energizing the coated object as an electrode, the paint adheres evenly to the surface due to the action of the electric field, and stable film thickness can be obtained even in complex shapes, recessed areas, and edges.
Because the coating film grows self-controllably, it is less likely to over-adhere and has little variation in paint quality. In addition, electrodeposition coating consumes only resin components to form a coating film and has high paint utilization efficiency, allowing for mass production while reducing environmental impact.

Product Summary

TOYOCHEM electrodeposition coatings are functional coating agents that simultaneously achieve uniform coating formation and high functionality for metal materials. Electrodeposition coating using an electric field can form a stable film thickness even in complex shapes, edges, and recessed parts, and surface treatment with reduced quality variations is possible.
Based on its unique resin design technology, it achieves multiple functions such as insulation, corrosion resistance, processing follow-up, and heat resistance at a high level, and is expected to be used in a wide range of fields as a coating agent that imparts functions to components.

Product features and differences from other companies' products

General electrodeposition paints, solvent coatings, and powder coatings often have the main purpose of rust prevention and appearance protection, and there are restrictions on the ability to provide functions.
TOYOCHEM 's electrodeposition coatings feature uniform and dense film deposition, allowing for optimal functional design for different applications, such as insulation, corrosion resistance, and heat resistance. In addition, it has processing tracking that can be used for bending and stamping after painting, contributing to improving process freedom and reducing defects.

Features that can be granted

Grant edge coverage

High processing tracking for complex geometries

Electrodeposition coating is a method that can uniformly form film thickness even in complex shapes, unevenness, and edges due to its self-controllability by electric field.
TOYOCHEM 's electrodeposition coatings combine excellent metal adhesion with high edge coverage and dense film deposition to provide a stable finish and high uniform film thickness regardless of shape.

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Insulation granted

High insulation is achieved by controlling film thickness

Electrodeposition coating is a method that can provide high insulation because it can be painted with a thick film and uniformity. The dense and uniform coating film formed using an electric field is less likely to form thin films even in three-dimensional shapes, effectively suppressing leakage and insulation failures from thin films.
TOYOCHEM 's electrodeposition coatings have been shown to have a characteristic that the breakdown voltage increases stably with the increase in film thickness, and high insulation reliability can be ensured by thickening the film.

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Granting durability

Maintains insulation and adhesion to substrates for a long time

Electrodeposition coating is a construction method that can stably impart high durability that is difficult to achieve with other construction methods due to a dense and homogeneous coating film formed using an electric field. The coating structure with few pinholes and voids makes it less susceptible to deterioration due to temperature changes and external forces.
TOYOCHEM 's electrodeposition coatings are resistant to cracking and peeling in cold and thermal shock environments with rapid temperature changes, and are reliable to maintain performance over time.

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Grants corrosion resistance

Excellent anti-corrosion function possible

Electrodeposition coating is a construction method that can stably impart high corrosion resistance that is difficult to achieve with other construction methods because it can form a dense and uniform coating film due to an electric field. It effectively suppresses the intrusion of corrosion factors and maintains anti-corrosion performance at edges and complex shapes.
TOYOCHEM 's electrodeposition coatings inhibit film degradation and corrosion progression even in harsh environments with repeated salt spraying, drying, and wetting, and provide excellent corrosion protection performance over a long period of time due to their high adhesion and dense film structure.

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Granting heat resistance

Maintains insulation and adhesion even at high temperatures

Electrodeposition coating is a construction method that is less likely to deteriorate or peel due to heat due to its dense coating film formed by heat curing and high adhesion, and can stably secure high heat resistance.
TOYOCHEM 's electrodeposition coatings exhibit low insulation and metal adhesion at high temperatures, maintaining long-term reliability even in heat-loaded applications such as electrical and motor components. If you are looking for a paint that can handle a higher temperature environment, we recommend the newly developed polyimide electrodeposition paint, which is a high heat-resistant grade.

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Polyimide Anionic Type Electrodeposition Coating (Development Product)

TOYOCHEM 's newly developed polyimide electrodeposition coating is a high-performance coating agent with heat resistance, insulation, and edge coverage that surpass that of conventional electrodeposition coatings.
With a high heat-resistant structure of Tg over 200°C and a pyrolysis temperature of over 400°C, it maintains an insulation breakdown voltage of more than 10kV even after 220°C ×500 hours. In addition, it can form a uniform coating film even under thick film conditions with a film thickness of 100 μm, and ensures edge coverage of more than 80% even in complex shapes and corners. It provides stable performance even in harsh temperature environments.

Click here for details of polyimide electrodeposition coatings

Supported materials

TOYOCHEM 's electrodeposition coatings are compatible with various metal materials such as SUS and aluminum. Suitability and incompatibility vary depending on the type of metal and surface treatment, so please feel free to contact us if you have any concerns.
(* Electrodeposition coating is a technology that forms a coating film by applying electricity to the subject, so it cannot be painted on materials that do not conduct electricity)

For more information on painting aluminum materials, please refer to the following page.

Document DL / Inquiries