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Metal finishing Q&As since 1989
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Rating a powdercoat finish
What standard or method should I use to determine what a type 1 or class A finish is? Are there guidelines to use to determine this?
Chris RyePowder Coating - Gallatin, Tennessee, USA
2004
There are a few different approaches to this issue-
1) You define it. You tell the customer what kind of quality you can produce, then he decides whether or not it's acceptable to him.
2) The customer defines it- The customer tells you what kind of quality he's looking for, then you work towards providing it.
3) Adapt and advertise an already established standard, like telecom, commercial, mil-spec. etc, that way when the customer is deciding on a supplier, he is already aware of your capabilities.
I was a custom coater for 7 years, and a class A finish is typically the surface that is immediately visible to inspection and should be blemish free. I've been an industrial coater for the last 9 years, and we use a customer provided spec. that defines 1st, 2nd 3rd class surfaces, and whether or not the part is acceptable dependent on what the blemish is and where it appears.
![Sheldon Taylor](../portraits/sheldon_taylor.jpg)
Sheldon Taylor
supply chain electronics
Wake Forest, North Carolina
2004
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