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topic 59426

Solution to prevent inside rust formation on tubing after powder coating?



October 16, 2013

Q. Hi,

I am doing powder coating on the outer surface of tube (material : Carbon Steel). But inside of the tube remain un-treated. After a period of time rust being generated at inside of the tube. If anyone have solution to prevent inside rust generation, please let me know.

Sapan Parida
- Aurangabad, Maharastra, India


October 17, 2013

A. Hi Sapan. Do you zinc phosphatize this tubing, by immersion, before the powder coating? If not, that's the first step in solving the problem.

Regards,

Ted Mooney, finishing.com Teds signature
Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey

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