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73-87 Chevy _ GMC Trucks => Body, Glass & Paint => Topic started by: Bitzer! on October 22, 2014, 04:14:33 am

Title: Zinc
Post by: Bitzer! on October 22, 2014, 04:14:33 am

Hi all,

A little quiet over this side of the pond, all work & no play.

A question for all you painters out there - If my chassis was blasted to bare metal and then zinc coated, what prep do I have to do to the coating before applying paint? Rub down, wipe, paint or can it just be wiped and painted?

Cheers in advance

Andy

Title: Re: Zinc
Post by: zieg85 on October 22, 2014, 05:34:19 am

There are several styles of zinc and all should call out clearly the next step.  Most of the ones I've sprayed use an epoxy intermediate coat but I am in the industrial side.

Title: Re: Zinc
Post by: Engineer on October 22, 2014, 07:15:01 am

My '77 uses doors, fenders, and hood from a '91 Suburban. All are zinc galvanized. I sprayed DuPont Ful-Poxy primer on everything. Epoxy primers are compatible with zinc. There are a couple more but most automotive primers are not compatible with zinc.