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What is standard E-coat thickness?

What's the standard thickness on e-coat? We need it pass 48 salt spray test.

Gilberto Martinez
product engineer - Monterrey, NL Mex
April 15, 2009

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April 29, 2009

Hi,

There is no standard for E-Coat thickness. However, thickness can be achieved from 15 - 30 microns consistently; depends upon the component shape & customer requirements.

E-coat thickness can be controlled with the following parameters mainly.

1. Concentration of the paint (Non Volatile content)
2. DC Voltage
3. Process time

15 Micron thickness E-Coat can easily withstand 480 hours Salt Spray test. But your requirement seems to be very low at 48 hours.

P.M.Saravanan
paint shop manager
Chennai, Tamilnadu, India

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It all depends on the paint and the application. Each paint has an upper limit past which you generally cannot get more paint to deposit. In terms of a minimum however, it all depends.

You're best off either asking your paint supplier or performing extensive testing on your own to determine the best thickness.

Christian Restifo
- Pittsburgh, Pennsylvania
May 1, 2009

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