Car and Vehicle E-Coat Services

What is E-Coat?

E-Coat, or Electrophoretic Coating to be scientifically correct, is a process in which the car shell and it parts are immersed into a bath of paint. This method uses electro currents to attract the coating to the metal surface allowing the liquid coating to travel further than any other coating, giving a more comprehensive coverage.

What are the advantages of E-Coat?

Due to the nature of the E-Coat, and how it is applied, the parts can go through a more thorough pre-treatment allowing better corrosion protection and better adhesion. As the shell is dipped into a bath a paint with electro currents, the process allows the paint to travel into A-pillars and box sections which would be left exposed if the shell were to be wet sprayed.

The Process:

After our process, E-Coat is applied in a unique 10 stage submersible process to ensure the best protection for your car shell.

  • Stage 1: This is an acid etch process which removes any contaminants off the surface and ensures the metal is clean for the coating to be applied.
  • Stage 2: This involves a 2-tank dipping process to rinse the acid from stage 1.
  • Stage 3: Conditioner, this prepares the surface for the Tri-cat phosphate to be applied.
  • Stage 4: Tri-Cation (Tri-Cat) phosphate which applies a corrosion protective coating to the work piece that restricts any corrosion from spreading or creeping under the paint.  
  • Stage 5 & 6: Stage 5 and 6 are submersion baths to remove any chemical that may have been retained on the surface of the work piece.
  • Stage 7: De-Ionised water submersion tank that remove any heavy metals that may be present on the work piece from the towns water. Stage 7 is also fitted with a halo spray to help with the removal of the heavy metals prior to the painting stage.
  • Stage 8: Electrophoretic paint (E-Coat) is applied. The shell is submersed in the bath and connected to the negative side of an electric circuit the paint particles are slowly positively charged using a rectifier. The positive charged paint particles build up on the negative work peace till it reaches a thickness that it becomes nonconductive to the pre-set volts. This ensures an even film build thickness over the whole surface of the work piece that is controllable by the number of volts put into the paint partials.
  • Stage 9: This stage is a 2-tank process which removes any excess build up to ensure an even coating over the surfaces of the shell.
  • Stage 10: The shell is placed in an oven which cures the shell for 40 minutes with an air temperature of 200 degrees. The cure interlocks the paint particles and hardens the coating a process known as cross linking.

After treatment:

It is recommended that this process is used as a surface treatment and a primer should be applied over the E-Coat for fine body works.