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Old 01-22-2002, 05:18 AM
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Post Painting help

My 36 chevy is in need of a new finish.The car was repainted in what appears to be enamel. I would guess the paint job is 15 years old anyway.I would like to paint the car , nothing fancy, this is no show vehicle. I was thinking of just shooting it with epoxy primer like I see on many rods.Should I just fine sand the existing finish smooth or do I have to remove all the old paint?The old paint is not peeling, just an ugly color. Do you think the epoxy primer will lift the old paint? At this time, removing everything and stripping the metal bare is something I'm trying to avoid.I know how to paint and have the proper tools and safety equipment, just am not current on the latest finishes thanks.

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Old 01-22-2002, 04:48 PM
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I think you will get away without having to strip the old paint. Unless there are several coats of paint already on it,then you would want to strip it.
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Old 01-22-2002, 06:32 PM
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If you have a compressor and a DA run over the old paint with some 180 grit then follow with 320 this will smooth the surface and give a good grip for new paint. This is more than Macco does but less show finnish
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Old 01-28-2002, 01:07 PM
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To simply answer your question, no, the old paint doesn't have to come off, but good preparation is the key to a a good paint job. If you aren't going to put color on it, then you may not want to block sand it, but if you are going to put color on it, then absolutely block sand it. After you rough the finish up and sand with 320, then put on a sanding primer like PPG K36 or K38 and a contrasting guide coat. Using a long sanding board sand out the highs and re-spray until the lows dissapear using the guide coat as an indicator of how well you are doing. This adds to the cost of a paint job because the primer is pretty expensive, but you could probably get most of the car done on a gallon. Imperfections that cannot be removed by block sanding are going to show up in any paint job. You've seen them, they look like a shiny job of being in a hurry.
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