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please help me with some painting problems

post #1 of 9
Thread Starter 
here are two pics of the side panel on one of my cases i'm trying to paint. if you look at the side angle you see some light spots. when you look at the panel from the top the spots are dark. i started over, sanding it back down, primered it again, and tried again but the same thing happened. it's not in the same places but there are these random spots that i can't get rid of. the primer looked even, i did a wet/sand after every coat. first time i even tried putting extra coats of paint over and over trying to get the spots to go away but to no avail.



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post #2 of 9
Try etching primer or automative primer filler,imo
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post #3 of 9
yeah,iwould try some auto primer ,then water sand it,then paint it.
post #4 of 9
Not sure what that is. but it could be grease or oil from your hand that prevents the primer from adhering to the panel. Clean the panel up with some isopropyl alcohol before you start priming
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post #5 of 9
it kinda looks like overspray or an uneven coat to me. when your painting are you making your passes the full length of the panel?

i dont think its oil because that would be more of a defined shaped
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post #6 of 9
Quote:
Originally Posted by phillipjos View Post
Try etching primer or automative primer filler,imo


Self-etching primer (not the kind that I have experience with, but it is similar).

Here is some blurb.

An automotive paint store will have what you need.

It might even be wise to run the panel down to a local paint store to ask them what is happening.
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post #7 of 9
Quote:
yeah,iwould try some auto primer ,then water sand it,then paint it.
I dont think you want to sand, especially wet sand etching primer. you'd be better off topping the etch primer with a hi build primer, then sanding that, but really you shouldnt need to sand the primer coats at all. wet sand your color coats.
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post #8 of 9
Quote:
Originally Posted by namehater View Post
it kinda looks like overspray or an uneven coat to me. when your painting are you making your passes the full length of the panel?

i dont think its oil because that would be more of a defined shaped
I agree. The first picture looks like dry spray (some areas have less paint than others). The top shot, I'm not sure. Oil would however make a different mark, generally called 'fish-eyes' or bubbles.

I would just give it a general sanding (320-400grit) till the coat is even, then go with another coat or two of primer. And as mentioned, try cleaning the area with alcohol just to be on the safe side.
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post #9 of 9
Thread Starter 
thanks everyone for your replies. i will try some of the things mention when i get a chance to get back to painting this weekend. i'll let you guys know what happens.
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