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topic 60536

Powder coating on Aluminum Zinc (Aluzinc) coated sheets

October 23, 2017

Q. Hi,
Is it feasible to powder coat on aAluzinc sheets. If it is possible, guide us with the method.

Sivaraja sekhar
- Chennai, India

October 2017

A. Hi Sivaraja. Although you should certainly check with the Aluzinc supplier, I can't think of any reason that powder coating would be inappropriate.

Although a zinc phosphate pretreatment should be workable, those suppliers who reveal their pretreatment seem to be using chromate conversion coating, which sounds ideal for a material with high aluminum content like Aluzinc. Good luck.


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Ted Mooney, P.E. RET
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