I've used Eastwood companies self etching primer in the spray bomb to prime trim area's on highly polished aluminum grill extensions prior to painting them semi-gloss black. It adhere's extremely well to the polished aluminum. Without using the etch primer the semi-gloss black practically falls off. So I'm convinced that the adhesion properties are there. This product appears to be lacquer based. Are there any reasons why this etch primer would'nt make a good base to spot prime bare metal area's before spraying 2k surfacer when doing body work? Or is the lacquer base not a good idea? This stuff lays down very well right from the can and I don't question the adhesion. Thanks, Mike

i wouldn't. i asked a PPG rep practically the same question years ago. he said putting different types of primer underneather different types of top coat, like lacquer under an enamel would be like putting a sponge under and egg shell. i'd definately use the same kind of primer for everything. the surfacer i used can be sprayed over properly treated bare metal. you might want to check if your primer can be applied to bare metal, if not then just use the same primer that you did use and maybe brush it on thin with a really fine brush, or if you feel like spraying... good luck!! hope that helps. http://www.chevelles.com/forum/biggrin.gif

I've not seen any paint rep ever "officially" recommend the inter-mixing of anything. I've used rattle can etch primer for small areas in a high volume, production shop with no, I repeat, no problems. That was under DuPont, Sikkens, Sherwin Williams and Spies-Hecker primers and top coats. That doesn't mean it's recommended...it only means it worked for me.

Same with vettefella, the only time we use that rattle can etch is on very small areas. I would never prime an entire part or panel with that rattle can etch. The rattle can is meant to be used on a spot repair etch, where mixing up regular etch is not meritted. Rattle can and regular etch DONT have the same properties. So for using it for very small spot repairs I see no problem, we've had great luck with it under 2k primer and even under base coat. Plus if I remember right etch primer is highly recommend if you want paint to stick to aluminum.

We use the stuff from S-W GBP988, non lacquer based. Says on right the can use only for small sandthrough spots on primer/sealer prior to topcoating...Eric

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1970 chevelle
1970 chevelle SS455 not a typo its a buick baby
1949 and 1972 chevy trucks
http://briefcase.yahoo.com/bc/sevt_chevelles

[This message has been edited by sevt_chevelle (edited 11-20-2002).]