01 / CATHODIC ELECTRO-DEPOSITION
CED: the component becomes the cathode.
During CED, an electrically conductive component is fully immersed in a water-borne epoxy paint bath and charged negatively. Paint particles migrate to and deposit on the component where the electric field can reach. As the deposited layer builds, it becomes increasingly insulating, supporting a more uniform film build.
SVSC's planned line pairs this process with zinc-phosphate pretreatment, rinsing and controlled oven cure.
Why buyers specify CED
- Coverage into suitable hollows, seams and recesses
- Uniform film on edges and flat faces
- Zinc-phosphate pretreatment for adhesion and corrosion protection
- UF rinse recovery to reduce paint loss
- Water-borne, lower-VOC coating system
- Primer option beneath powder or liquid top coats