Pockmarks in my primer. What to do?

On my last coat of epoxy primer it now has what look like pockmarks. Before this last coat they weren’t there. My question now is I’ve sanded most of it down with 600 grit wet and they’re still slightly visible and not really noticeable by touch, with that being said will these be visible if I were to spray base coat and clear coat?

(The area in the pic is not completely sanded down yet)
 

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Keep sanding. FYI, the cracking around that hole will show through.

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I figured they would unfortunately. I don’t know what else to use in order to address those cracks. Fairing compound? Or what would you use? If I did address them would I have to reprime the surface before basecoat? I’m all out of primer as of now so I’d have to buy some more.

I kept sanding and problem solved. A couple more hours of sanding to go...
 

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Good rule of thumb is anything that shows in the primer will show in the clear. And I always use 400 grit to knock down the orange peel and give the basecoat a little bit more to grab on to. If you use a finishing glaze because the pinholes are too deep, you will need to put a coat of primer over those spots too leave a uniform color finish. Some basecoats will appear darker or lighter depending on the color of the primer. So if you use a gray primer and the substrate was black, you will end up with dark spots In the basecoat if you don’t reprime spots that went thru the primer.
 
Take it down to 320 and then finish with 600. Follow the instructions for flash / respray times.

What size aircap are you spraying with? Looks like it's a 1.8.
 

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That's probably solvent pop, In most cases it's caused by applying too much paint too quickly without allowing enough time between coats for the solvent to escape. Sand it out and re-prime.
Yes, I would say that for sure, or I have seen where it was sprayed from to to far away(misted and not layed on wet), can cause that problem too. Air gets trapped and when sanded does that. Its like when someone tries to fill too deep of sanding scratches with primer and air gets trapped in the scratches, and after they sand it down, they cant figure out why the primer didnt do its job...lol
 
Yes, I would say that for sure, or I have seen where it was sprayed from to to far away(misted and not layed on wet), can cause that problem too. Air gets trapped and when sanded does that. Its like when someone tries to fill too deep of sanding scratches with primer and air gets trapped in the scratches, and after they sand it down, they cant figure out why the primer didnt do its job...lol
yes what @dirtyzoar said is what most likely happened. It’s my first paint job on anything ever so it’s a big learning process for me. I sanded most of it out going from 400 dry to 500 then 600 wet and it’s coming out great but poking through to the color in a few places. Would y’all get more primer and put 1 more good layer on it or will basecoat not be affected by the color underneath the grey which is orange?
 
Take it down to 320 and then finish with 600. Follow the instructions for flash / respray times.

What size aircap are you spraying with? Looks like it's a 1.8.
Air Cap Just has a square on it so not sure what size, the needle is a 1.4. It’s a 20 year old Cheap gun that hasn’t been used until now. My graco turbine gun clogged up on me and wouldn’t spray, I couldn’t figure out what happened so I resorted to using this.
 

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