Painting primed and non primed surfaces

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PostPosted: Sun Sep 17, 2023 10:28 pm
Hello everyone!
I repaired my car and replaced the hood and the fender. The hood came from a gray car which I sanded down and primed in gray. The fender, black, is sanded and not primed. My car is orient blue metallic. We were able to find a super close match with the color which I'm very happy with.
At this point I'm ready to test on the old panel before I touch the car.
Should I prime the entire fender too?
Should I just prime the edges adjacent to the hood?
Do I need to use some sort of sealer before I lay the base coat?

I'm afraid the primer is going to bleed through.
Any suggestions? Here's a few pics:

https://ibb.co/3SwsWkF

https://ibb.co/1Z54j13

https://ibb.co/tcHQ5Fm

Thank you.

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PostPosted: Mon Sep 18, 2023 5:23 am
Why would the primer bleed through?

Your new basecoat will adhere just fine to previously painted surface sanded with P800 wet.

What I would suggest is that you do a single closed coat of dark grey to black sealer or epoxy first. This will make your base coat colour consistent across the join between the guard and the bonnet.
Chris



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PostPosted: Mon Sep 18, 2023 4:22 pm
Thanks. So in other words I can paint over the black fender once sanded with p800 grit and give a coat of dark gray primer sealer to the hood/bonnet

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PostPosted: Mon Sep 18, 2023 11:52 pm
Yes, assuming the paint on the guard is in good condition. The dark sealer is just to help you get an even colour match at the join.
Chris

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