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MEK rub test for paint

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Q. How many micron thickness reduction after rub test on painted panel?

Mahesh yadav
Employee - Mumbai, India
October 25, 2023

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Q. I am involved in aluminium coating industry, I heard MEK / methyl ethyl ketone rub test from several paint supplier, they feel that this is the basic test for paint finishing quality test. But I feel that this is not true, why I conclude this because the pressure on the cloth to the panel is not control if do the test manually. Second, different property of paint and powder will have different reaction to the MEK. I do even heard that some of them said without any removing of paint will consider pass, but some of the standard stated that no no substrate show through will pass the test, no idea which one is correct. Any opinion on this issue?

Hanson
- Singapore
2003

A. Please use the search engine. This had a fair response to a similar question a year or so ago.

James Watts
- Navarre, Florida

A. Dear Hanson,

This MEK test is just for zinc-rich primers. You can refer to ASTM D4814 for further information. In this standard the degrees of removing the paint are defined.

Pinar Hasanoglu
- Turkey

⇦ (tip: readers rarely show interest in abstract questions, but people's actual situations usually prompt responses)

Q. May I get MEK test acceptance detail. Thanks

Rizwan
- Pakistan
May 22, 2011

⇦ (tip: readers rarely show interest in abstract questions, but people's actual situations usually prompt responses)

Q. Even if we have ratings from ASTM D4814, which is the rating that is acceptable in the case of Inorganic zinc silicate primer?
Please advise.

LIYAQUATH ALI CHAPPANGA THOTTATHIL
- UAE
May 1, 2012

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