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Old 11-07-2009, 03:23 PM
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extreme makeover

Hey guys am new to this place. I am a Police Officer trying to be an auto painter. I am sure I will need lots of advice during this project. Project is a 1988 K5 Blazer. I have already done the floor area, and am starting on the tailgate. I have taken it to bare metal and applied two coats of etching primer. has one low spot to fill before high build. after that do i seal it before applying top coat? thanks Herb
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Old 11-07-2009, 07:34 PM
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Everyone has their own opinions on using sealers. I had read so many bad stories associated with them that I never used them for years. A few months ago I tried it for myself and loved it. It increases adhesion and holdout, so you end up using less paint to achieve coverage, and it has the ability to fill any minor scratches you missed. Just practice on small parts first to see how it flows out and works for you.
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Old 11-08-2009, 09:41 AM
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" I have taken it to bare metal and applied two coats of etching primer. has one low spot to fill before high build. after that do i seal it before applying top coat?"

you should not need to but it will not hurt anything. Check with your supplier about reducer, hardener (yes or no) and flash time (wait X min but less than XYZ min.) before color coat.
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Old 11-08-2009, 10:20 AM
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If you skip the etch primer on these panels you can (and should) apply the filler right over the epoxy on those low spots that creep up. You can't do that with the etch. So you could epoxy prime it, then fill that little low spot then apply a urethane primer over than and block it to perfection, then seal or not seal at that point prior to paint.

I personally don't use a sealer, but, again, it is largely a personal preference. In collision work using a sealer is just about manditory. You are doing spots on the car, a dent was fixed on the front of the door and there is a primer spot. You prep the whole panel for paint, seal over the primer to eliminate the posiblility of solvent getting under the edge of the primer spot or that sort of thing, also to cover up a primer color that is too far from the color of the door.

But on a complete panel paint, if you use the right color primer and every panel on the car is in complete urethane primer, why not just paint over it? That is how I have done for years. But again, the sealer can catch some sand scratches you missed or thin spots in the primer, that sort of thing.

Brian
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Old 11-08-2009, 07:00 PM
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extreme makeover

OK, so you are suggesting to spray the epoxy primer on the panels after scuffing, even if bare metal is showing. then take care of any low spots then eurathane primer before top coat. what should I do about the tailgate that has etching primer? Can I spray eurathane over that? thanks herb
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