Electrophoretic paint

Electrophoretic paint,xavier

What is electrophoresis

Electrophoresis is the abbreviation of electrophoresis phenomenon, which refers to the phenomenon of charged particles moving towards electrodes with opposite electrical properties under the action of electric field. Under the action of an external DC power supply, the colloidal particles move directionally towards the cathode or anode in the dispersed medium. This phenomenon is called electrophoresis.

Electrocoat paint was founded in the 20s of the 60th century and was first used by Ford Motor Company for automotive primers. Because of its excellent anti-corrosion and anti-rust functions, it was soon widely used in the military industry. Due to its excellent quality and high environmental protection, it is gradually replacing traditional paint spraying.

Advantages of electrocoat.

(1) Electrophoretic paint has the advantages of full, uniform, flat and smooth coating. The hardness, adhesion, corrosion resistance, impact performance and permeability of the electrocoat paint film are significantly better than other coating processes.

(2) The use of water-soluble coating, using water as the dissolving medium, saving a large amount of organic solvents, greatly reducing air pollution and environmental hazards, safety and hygiene, avoiding fire hazards;

(3) High coating efficiency, small coating loss, coating utilization rate can reach 90%~95%;

(4) The coating film thickness is uniform, the adhesion is strong, and the coating quality is good. Uniform and smooth paint film can be obtained in all parts of the workpiece such as inner layer, depression, weld, etc., which solves the problem of other coating methods on workpieces with complex shapes. coating problems;

(5) High production efficiency, construction can realize automatic continuous production, greatly improve labor efficiency;

Disadvantages of electrocoat paint

(1) Complex equipment, high investment cost, large power consumption,

(2) The temperature required for drying and curing is high, the management of paints and coatings is complex, and the construction conditions are strict.

(3) Wastewater treatment is required;

(4) Only water-soluble paint can be used, and the color cannot be changed during the painting process. The stability of the paint is difficult to control after long-term storage.

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