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Old 07-20-2005, 04:15 PM
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Newb body prep questions

Well I will soon start the process of stripping and prepping my 73 Nova hatch back. I have been doing some reading and I still have some questions. The first thing is due to some peeling I have noticed that my novas black paint job is over its original orange. Is it best to sand to bare metal or rough up the original paint and use that as a base for the primer? What is the best grit to use in the initial sanding process. What is a good sandable primer to use? What is the best way to remove the trim on my car (front/back windshield, hood lip, badges and around the headlights)? I have also been looking at compressors and recs on which to get would be great. Thats about all the questions I have for now but there will probly be more later, any other tips or suggestion you have would be great to hear.

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Old 07-20-2005, 05:29 PM
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Cool car. Hopefully I will have a nova someday. Since your car has the original paint plus black over that and it is peeling you would be best to strip it down to metal. It would be a waste of money putting some nice expensive paint over the old paint which has the potential to fail and ruin the new stuff you put on top. Plus you will be able to see what you are truely dealing with when you take it down to metal.Everyone has their own favorite products. I personally put epoxy primer down on metal then use a 2k urethane filler primer over that for block sanding and fill. When choosing a compressor you have to consider any tools you plan to use and match their cfm requirements to the compressor you buy. For painting get the largest you can afford with a large tank to hold air. I have a 7.5 devilbiss with 80 gallon tank. Some air tools and hvlp guns really require a lot of air. You are probably talking a 220 volt dual stage compressor to keep it from recharging all the time. Another purchase for painting should be a water trap located 25' or more of line away from the compressor. For stripping paint I start with 36 grit on a 8" orbital and go over that with 80 grit on a 6" da. Anything I can't get by sanding, I either sandblast or use chemical stripper.
Good luck. Be ready to spend some cash because paint and the tools needed are expensive.
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Old 07-20-2005, 07:56 PM
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Kenseth17 had some good comments even though he must be a Roush fan

I agree materials are way too expensive to put on top of "unknowns". So unless you know what paint a car has now, dont add material on top of it. You said original paint or mostly original. Make it go away

Couple things I would recommend for someone new. First spray everything like you mean it including primer. Dont throw it on which you can get away with since it sands out anyway. Follow the instructions, use the right size fluid tip, right mix, air pressure, etc. What I am saying is dont be unfamiliar with the paint gun (or the way it is supposed to work) when it comes time to paint.

I know a lot of guys that have built some nice cars and the prep worked looked great. but they did more sanding than needed getting there. They loaded the primer on, let it cure and then sanded (repeat again, again, again). But when it came time to paint they were still using their bad primer habits.

Another thing I would say is guidecoat everything. Its a great learning tool to see what a sanding block does when you sand. You would be surprised the damage you can do with the edge of a block. So even if you dont "need to", guidecoat it from the beginning and learn from watching the results.

As far as whats a good primer?? Well decide on your paint up front. You should use the same brand from starting primer to sealer to paint.

Dont get in a hurry. Huge problems come from trapping solvents and resins. Allow proper flash times between coats. Let the solvents evaporate out of your primer. Make sure it dries out before final sand and seal.

With the compressor. The bigger the better within reason. If you buy just enough compressor it will run nonstop. Not only is it annoying, but a hot compressor makes more condensate. Nothing like spraying water with your air.

I am not a professional (by a long shot) but have had some outstanding results from hands on "failures". This forum is great and there are several really really sharp guys on here. Search/read and ask questions if you cant find the results.

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Old 07-21-2005, 07:22 AM
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There can't be enough emphasis on stay with the same brand of paint all the way through. I have PPG shops close to me, and thats what I used. EVEN IN THE SAME LINE, there may not be compatable finishes. ESPECIALLY PPG !
My recommendation, is to pick the color you want FIRST!, then backstep to your sealer, build primer, and then epoxy primer. READ EVERY TECH SHEET FOR EACH PRODUCT!! Don't rely on the jobber to hand you the right stuff. I was at a Dupont Hot Hues Seminar this past weekend. Their system looked MUCH easier. Barry K's system (Southern Polyurethanes) looked easier as well! And you can ask him millions of questions (Try to research first, though!). He's a regular contributor.

Take it down to bare metal. You'd be amazed at the hackjobs the poor car has seen through its life. Do it right the first time. Ebay has some deals on 3M "Painters" kits, "Bodymans" kits etc. Its just the abrasives, and stuff you need to get started. They have quite a bit of stuff, like $200.00 worth for $50+/-. Look around. Add your D/A and compressor and your doing it.
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Old 07-21-2005, 12:24 PM
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Being in or around a big city like you are should give you the opportunity to have several paint jobbers to choose from.

The BEST advice I have is to visit as many of these suppliers you can and find the MOST knowledgeable one to buy from. Mine happens to be a Dupont jobber and after I got to know the paint man I get the big shop discount and the benefit of his advice which has been invaluable. THANKS TIM!!!
A good counter person can be your BEST allie in the paint wars and believe me, it IS a war some days and having someone to answer your most basic questions is worth more than money.
The other thing is while your instore buying, several customers will come thru and most are more than helpful with questions you have. Some are hacks and some are great, You'll have to "weed" thru some to get the right answer occasionally but I've learned almost as much from them as anywhere.Just standing and LISTENING will benefit you.


HERE of course!!!
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Old 07-24-2005, 10:47 AM
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Thanks for all the good info guys :0) dont be afraid to keep it coming.
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