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Old 07-10-2009, 05:48 AM
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filler visible under epoxy primer

I'm doing my first paint job and I just sprayed epoxy primer over bare metal and filler work. My intention is to sand and then spray polyester primer over the epoxy to perfect the body work. My concern is that after two coats of epoxy, I can still see the areas of body filler underneath. The filler is covered well enough but it's like it has a different texture and shade than the areas that were bare metal. Is this normal or have I done something wrong? Will everything look consistant once the polyester is on?

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Chris

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Old 07-10-2009, 06:54 AM
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it's normal. the metal is smooth and the filler was sanded.
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Old 07-10-2009, 07:19 AM
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Yep, it's normal. That is what the polyester primer is for, to level out all the imperfections. You may even see them in the polyester primer....BEFORE you block it, at that time any small imperfections will be gone.

Brian
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Old 07-10-2009, 09:35 AM
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i no longer use polyester primer. i just continue with the epoxy until i'm satisfied with it then paint.
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Old 07-10-2009, 10:56 AM
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same here.... no need for 2k.... bondo absorbs and metal dont,just sand and reshoot
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Old 07-10-2009, 12:33 PM
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yep mine looked like that too , until i shot the 2k primer over it.
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Old 07-10-2009, 01:48 PM
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Thanks for all the replys! I feel totally relieved to hear it's normal. Now I'm not sure what to do. I already bought the 2k, but you guys think I'm better off sticking with epoxy. I guess I'll decide after sanding. Thanks again for the help!!!
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Old 07-10-2009, 02:09 PM
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not necessarily CK,the epoxy shine and I use is SPI ,the others I've used cant do this so go and use the 2k ,it works well also ,but sand the epoxy first,mabee with 180 or so,to give that 2k something to bite into but not so rough as to get down to the metal as 80 grit would
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Old 07-10-2009, 03:08 PM
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The SPI sands nicely, almost as well as the 2K - up to a point and that being several weeks after application when it really gets hard. You can still sand it then, but it just becomes more difficult. DuPont/Nason - let it sit a few days - and you will never sand it like the SPI - ever. I ran out of SPI and used some DuPont to cover some bare metal, had to let sit for a couple of weeks and then had my "fun". Scuffed with 180 then did 2 coats with my fresh order of SPI, wet sanded the next day with 600/800/1000 then painted on the third day.

Poly primer - not really nice stuff to work with IMHO though I had to use some on the trunk lid of my '31. It works well for those less then perfect panels that need just a bit more TLC
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