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Pretreatment for powder coating on MS sheet

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Sir,

Please tell me the detail latest process for Powder Coating Pretreatment Process for M.S. sheet.(thickness 0.5 to 1.5 mm). And please tell me the frequently appeared causes for rejection (Troubleshooting) and remedies.

thanking you,

HRISHIKESH TA
LIGHTING - MUMBAI, MAHARASTRA, INDIA

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Hi, Hrishikesh. You need to retain a consultant for this pretreatment, or align yourself with a proprietary supplier who will help you, or at least get hold of a book or two on pretreatment such as Samuel Spring's "Preparation of Metal for Painting" [link is to info about the book at Amazon] or "Phosphating of Metals" [link is to info about the book at Amazon] by Werner Rauch.

There are numerous approaches to pretreatment ranging from iron phosphate to zinc phosphate to proprietary modified phosphates to zinc plating to electropriming, and each of these has numerous variations. Unfortunately there is no way to say which is most appropriate for your situation without a detailed study. Good luck.

Ted Mooney, P.E.
finishing.com
Brick, New Jersey

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