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How long til I can wet sand

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  • Member since
    January, 2015
  • From: Seattle area
How long til I can wet sand
Posted by Chevy II on Tuesday, March 19, 2019 5:31 PM

Just finished painting with Rust-Oleum 2X primer and top coated with Krylon satin black. I am planning to sand thru some of the top coat to get a slight weathered look showing some of the primer. How long should I wait to wet sand the top coat? What grade sanding paper should I use?

Thanks for the info.

  • Member since
    January, 2019
Posted by ModelTexan1 on Tuesday, March 19, 2019 11:27 PM

Usually it is best to wait until the solvent has finished outgassing.  If you can still smell the paint fumes when you hold it close to your nose then you should probably wait.  Since it sounds like you just want to simulate 'paint fading' then I would start with a very fine grit like 1200. That way the rest of the painted areas will still be close to the same thickness as the faded areas.  You can always move to using coarser grits if you aren't getting the effect you want.  Going the other way is hard :)

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