The miracles of science™

Select Industry

DuPont Automotive Website

Science of Automotive

What is Electrocoat?

In short, electrocoating (also called e-coating or electrodeposition) is the process by which a metallic workpiece is submerged in a paint / water bath and electricity is used to deposit paint onto the workpiece. The electrodeposition process is the most automatic, controllable, and efficient method for applying a corrosion inhibiting primer to a metallic workpiece.

In a full system application, electrocoat is applied between the phosphate and primer layers.  The electrocoat layer is the primary corrosion protection layer.

Science Image
Advantages of Electrocoat

Electrodeposition offers five primary advantages over conventional spray application...
Science Image
History of Electrocoat

The first use of electrodeposition to apply an organic coating to metal occurred in the 1930’s...
Science Image
Electrocoat Process Overview

The electrodeposition process consists of deposition of the coating, post rinsing, and curing the film...