"CED" / Electrophoretic Coating
SUGGESTED E-COATING, CED, E-PAINTING BOOKS
for Shops, Specifiers, & Engineers
"Electrocoat: Formulation & Technology" by
Bruggemann & Rach (2020)
avail from
eBay,
AbeBooks, or
Amazon
"Electropainting: A survey of principles and practice" by
Reginald Leslie Yeates (1980)
avail from
eBay,
AbeBooks, or
Amazon
"Electrophoretic Deposition (EPD)" by
Nathan Bass (2017)
avail from
eBay,
AbeBooks, or
Amazon
"Electrocoating: a Guidebook for Finishers" by
Electrocoat Association (2010)
avail from
AbeBooks, or
Amazon
"Handbook of Electropainting Technology" by
W. Machu (1978)
avail from
eBay,
AbeBooks, or
Amazon
(as an Amazon Associate & eBay Partner, we earn from qualifying purchases)
CED is an acronym for 'cathodic electro-deposition' ... which may also be called electrocoating, electrophoretic lacquer, e-coating, electropainting. or electrodeposition. In the early days of electrocoating, the work was often positively charged (anodic electro-deposition), but these days the work piece is invariably negatively charged (cathodic).
CED coatings are organic, like paint, but are applied in a manner analogous to electroplating, i.e., the parts are immersed in a solution, current is applied to them, and the current converts the dissolved materials in the solution into a 'paint' on the parts.
Advantages of CED over competing coating technologies include their ability to apply very thin coatings (0.0002" is realistic) and very uniform coatings onto parts. The reason this is possible is that the solution that the parts are immersed in is conductive, but once it is electrochemically converted to a paint-like coating on the parts, it becomes highly insulating, which causes the current to be diverted away from areas which are already thinly coated to any area which is not yet coated.
