Cathodic dip painting (CDP) is an electrochemical painting process, whereby the material is dipped in electrically conductive paint. A direct current field is applied between the material and a counter electrode. Since materials of different charges attract one another, a closed paint film with excellent adhesive properties is created by the process.
Automatic CDP coating allows the application of even layer thicknesses with high surface quality to metal surfaces and cavities. CDP painting ensures effective and lasting protection from corrosion with high temperature resistance and excellent chemical resistance. Such surfaces are scratch-proof and protect against stone chips.
Cathodic dip painting
Cathodic dip painting (CDP) makes use of electrochemical properties in the coating process. It is based on the physical principle that materials with different charges are attracted to one another and therefore achieve very good grip. Cathodic dip painting achieves an extremely even coating on metal surfaces and cavities, with uniform layer thicknesses and good surface qualities.
Cathodic dip painting ensures effective and lasting protection against corrosion with high temperature resistance and excellent chemical resistance. Such surfaces are scratch-proof and protect against stone chips.
CDP coating is an environmentally friendly surface treatment method, since water is generally used as the solvent. It is well-suited for automated coating and meets the high standards of the automotive industry.
CDP-coated surfaces provide the best basis for a combination with a powder coating or conventional painting. As a duplex coating, CDP can also be applied to zinc flake, galvanized zinc or zinc alloy layers. CDP coating can therefore be used almost anywhere, regardless of color and surface structure.