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Old 06-30-2003, 04:04 PM
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Sealer or polyester primer first?

After completing the body work on my 41 Ford should I seal the whole car with DP90 then spray with high build polyester primer and prep? Or should I spray the polyester primer first, sand then seal? I was thinking seal first to protect the body then spray with polyester so that I can sand the surface and still keep the steel protected. What do you guys think?

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Old 06-30-2003, 04:09 PM's Avatar Moderator
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Prime first. The sealer is intened to be used just before the color coats to protect the final finish from bleed thru of bondo, old pint, body solder flux, etc., that might discolor the paint from underneath. It isn't intended to be a special protection for the metal.
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Old 06-30-2003, 04:20 PM
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Willy is right,
sealer is just what it says, think of it as a sheet of plastic between the primer and the paint. hth.

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