Cathode Electro Deposition
Cathode electro deposition is a wet coating system to provide perfect corrosion protection for all metals. CED is a deposition of layer of primer coat on pre-treated metal parts by dipping the components inside the positively charged paint bath. The coating is applied via electrodes. Later, the components leave the tank. The loosely adhering material is washed away with the filtrate recovered from the catho dip coating paint. This process is suitable for Dip or Continuous conveyor type production widely used in automobile, radiators and other bulk manufacturing industries.
Paint film thickness can be easily controlled by time and voltage, and uniform film thickness can be obtained compared with conventional corrosion prevention methods such as air spraying and dipping. Moreover edges, corners, inside boxes, and spot welding portions can be appropriately painted without drips on paint films. It can also reduce the amount of paint taken out of the tank by each body, consequently paint loss is low. Corrosion prevention performance can be dramatically improved, including that of closed cross sections.
CED process requires Zinc phosphate plant, paint curing oven and CED tank accessories like Dump tank, UF, Analytic cycle, rectifiers, chillers, cooling towers backup power (Anode, Plate, Anode box, Anode tank, Cathode plates, rectifiers, membrane, UF-module, chiller, cooling tower & educators). We build Electro Dip Coating Plants with design & technical documentation support from a UK based company which has more than 25 years experience in the industry.