Tuesday, May 31, 2016

The Problem-Solution Series: Part 17

Poor Chemical Resistance

Problem: The film of your powder-coated part has poor resistance to chemicals. How can you stop this from happening again?

This lack of resistance could be a result of either unsatisfactory cleaning, poor pretreatment, or a mixture of both.

Assess the conditions and the chemicals of the cleaning, rinse, and pretreatment stages.

Second Origin: It is also possible that a change has been made in the substrate but not to the process.

Solution: Contact substrate suppliers to find out if any changes to the substrate have been made.

Third Origin: Under-cured films will usually exhibit low adhesion.

Solution: Modify the cure conditions by increasing both the temperature and dwell.

For additional information on powder coatings, visit our website at tcipowder.com. Feel free to contact us today to have someone from our experienced team answer your powder coating questions or to see how we can help you with your powder coating needs.

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