I second this opinion. Epoxy adheres like sh*t to a blanket and body filler sticks to it better than it does to bare metal. The corrosion resistance and moisture barrier and properties make it a great product to put down first.
 
I recommend it over any bare metal. After stripping paint off the body and any rust removal / metal patching you should use it because it seals out moisture.
 
As Dan said, do your filler work over it. It's not meant to be a filler /surfacer. It doesn't sand or fill very well and wasn't meant to, so do your bondo work and then put a primer surfacer over it to do your finish work.
 
Anything that is going to sit for a while (like most parts during a restoration) before painting should have epoxy on it before primer surfacer. Water won't penetrate it like it will primer surfacer.
 
The beauty of this product is; once you follow these steps the parts can sit around indefinitely before paint because moisture can't get to the metal. If you just use a primer surfacer water will soak right through to the metal and primer surfacer holds it like a sponge.
 
Bill Vander Werf
 
----- Original Message -----
Sent: Friday, September 08, 2006 6:25 AM
Subject: Re: [Chevelle-list] Best primer - frame/ suspension parts

Epoxy Primer is your best bet on bare metal, whether its your frame, or your sheetmetal.  All bodywork should be done on top of the epoxy primer.
 
You can pick up a cheap gravity feed gun at Harbor Freight for about 15 bucks that will work great for spraying your frame and suspension.
 
Best of luck!
 
Dan McIntosh
90'd out 1983 Fleetwood Coupe
Street Metal Fabrications
http://www.lowriderimpala.com

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