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I was just in the supply store today. I told the guy that I'm using Centari. I advised him that the metal has no bondo in it at all just in case this makes a difference. I read on line to prime the metal with Dupont Epoxy Primer and then to hit it with a coat of DuPont Sealer. He says the sealer is not needed because the Epoxy Primer is a sealer. Please advise me as to what to do. Plus, what chemical should I use to clean the metal before I prime? And what chemical should I use to clean the primer before I apply the Centari? I'm an engine guy and am still green to paint work. But I have to start somewhere. This isn't a show car. I'm repairing the trunk lid to my daily driver which has 150G on it but runs fine.
 

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hey coodeville! you can get a metal/primer prep agent at the paint store or the local auto parts store,same thing for both,prepall is what i use.at least i think thats the name.its jus a wax and grease remover.also you dont need an additional sealer the epoxy primer is sufficient. hey !loosen up and it will all be fine. next thing youll be asking is what to do about all that trash and bugs in your new paint job..dont worry thers afix for that too! ive asked all the same questions so im really just passing it on see ya!, jimm
 

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OK, Jim! Thanks for the info! DuPont is useless for this info. I go there web page and can't get a thing. What grade sandpaper should I sand the epoxy primer with?
 

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you're on the right track with the prepsall, i believe there's 2 types, ones a liquid like thinner, one's like a liquid wax in consistency. i always wipe the bare metal with lacquer thinner, then prepsall, then primer. it's a good idea to let it cure for a few days if possible, sand with 320, wipe again, tack cloth and paint. good luck, dan
 

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I don't know the product names in the Centari line (RM I think). But, there are basically two types of primers. One goes on the bare metal and has high adhesion, it also shields the primers from lifting incompatible base paints if not sanded down to metal. This coat is not sanded. The next coat is a sandable surfacer. It is much softer and sands very easily. This is where you block sand the surface to get it absolutely smooth and work out the imperfections. When sanded to where you want it, a final sanding at 400 grit is done and then the top coat goes on. Seems like Centari may be an acrylic enamel if I remember correctly. Not a first rate finish by current standards, but good inexpensive top coat. If I was learning, I would use a basecoat/clear coat system. It is much easier to correct your mistakes and you get a better final finish.
 
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