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Old 09-03-2012, 08:42 AM
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perfect paint job

if i sandblast to bare metal do I still need to do 80 grit DA scratches?

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Old 09-03-2012, 10:47 AM
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sand blast ?

I had my model A pickup bed sand blasted and even after washing, blowing with air a few times I still ended up with sand in the color coat. I only sand blast bits and pieces that can't trap sand.
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Old 09-03-2012, 11:44 AM
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What do you plan on sand blasting? DO NOT sand blast sheetmetal body panels! It is VERY dangerous as you can warp them VERY easily.

But if a piece of metal sand blasted doesn't need any sanding unless it was pretty coarse sand that was used to blast it. In that case 120 would be better.

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Old 09-06-2012, 09:55 AM
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I have always sanded with 80 grit with a DA after sandblasting!! Primer is a mechanical bond and those scratches make a great base. Also DA'ing you get rid of any dust etc hiding in crevices ( microscopic ) that sandblaster made that air may not be able to get out. Not sure if I need to, I just always have and never have had an issue..
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