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Old 06-05-2013, 11:38 PM   #1
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Paint over etching primer

I will have many questions, but will deal with one at a time.

I have the entire front end (fenders, hood, grill) off of my YJ. Wire wheeled the paint off of the frame back to the tub. (Like so many things, it seemed like a good idea at the time.) I am planning on going with primer, and then some Tractor/Implement Enamel (with hardener). I planned on using etching primer. Question 1:, where the bare metal meets the original paint, will overspray of etching primer on painted frame rails be a problem. Question 2: do I need another coat of regular primer over etching primer, or will enamel go right over the etching primer.

Thanks for patience with my lack of knowledge.

Paul

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Old 06-30-2013, 07:33 PM   #2
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I would use epoxy primer on bare metal, it protects bare metal from moisture a lot better than etching primer.

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Old 06-30-2013, 07:46 PM   #3
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overspray will not be a problem..just the etching primer will be fine,recoating with regular primer is not needed
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Old 06-30-2013, 07:52 PM   #4
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Rule of thumb is if its an area larger than a silver dollar it needs etch or epoxy. Either way is fine, if you etch you will have to put an urethane sealer over it before you topcoat it. However alot of todays epoxies arent like the old DP's. personally for large areas or completely stripped panels i would put a C.R.E on, let it dry then sand it smooth and go straight to top coat.
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Old 06-30-2013, 08:11 PM   #5
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the equipment enamel will seal it
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Old 06-30-2013, 09:33 PM   #6
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Etching primer and normal primer will absorb moisture and will eventually rust out especially on the frame where you aren't re spraying the entire thing. Be on the safe side dude and use epoxy or the c.r.e just don't use regular or etching primers!
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Old 07-01-2013, 03:12 AM   #7
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What's c.r.e.?
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Old 07-01-2013, 08:49 AM   #8
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Corrosion resistant epoxy
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Old 07-10-2013, 08:51 AM   #9
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Thank for the replies, guys. I went ahead and painted before getting replies. I never would have thought of the primer absorbing water, just thought I was doing the right thing using etching primer on bare metal rather than plain primer. I went with Martin Senour etching primer, and two coats of Tractor and Equipment Enamel with hardener. Will see how it goes. Fortunately I live where relative humidity is often single digit and rarely over 20%, so maybe it won't absorb too much water.

One reason I have hesitated starting putting this back together is I am a perfectionist and don't want to do something unless I am sure it is the best way. I am working on getting past that, and although I want this to look good and operate well, my mantra is now "it's a jeep".

I will attempt to ask further questions farther ahead of actually doing something.

I will be posting the next question on another thread.

Thanks again for the help.
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Old 07-10-2013, 09:14 AM   #10
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Quote:
Originally Posted by PaulChristian View Post
Thank for the replies, guys. I went ahead and painted before getting replies. I never would have thought of the primer absorbing water, just thought I was doing the right thing using etching primer on bare metal rather than plain primer. I went with Martin Senour etching primer, and two coats of Tractor and Equipment Enamel with hardener. Will see how it goes. Fortunately I live where relative humidity is often single digit and rarely over 20%, so maybe it won't absorb too much water.

One reason I have hesitated starting putting this back together is I am a perfectionist and don't want to do something unless I am sure it is the best way. I am working on getting past that, and although I want this to look good and operate well, my mantra is now "it's a jeep".

I will attempt to ask further questions farther ahead of actually doing something.

I will be posting the next question on another thread.

Thanks again for the help.
you will be fine..the equipment enamel will seal the primer..epoxy primers and urethane paint are fine products but we produced very nice paint jobs that lasted when we just had normal primer and enamel paint

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