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Powder coating changes color from heat and humidity

Dear Sir
After powder coating when the material is placed in the temperature of 50 degree and in the humidity of 95% then the colour of the material is changed.Give me some solution for that problem.

Bhagirath Sahu
- Ecil, Hyderabad, AP, India
August 27, 2010

To obtain any help with your problem you need to inform the readers...
a) The metal substrate Al or Fe etc?
b) Type of coating used?
c) Pretreatment if any?
d) What test equipment is being used... if any?
e) What is the start colour and defect colour... an image may help?

Terry Hickling
Birmingham, United Kingdom
August 31, 2010

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