And I broke out the seam sealer today, most probably overkill.
I need a heavier product for the wheel wells then I can get to spraying the undercoating.
I would look at using sprayable seam sealer, I have used it before to duplicate the coating on the bottom of the rockers on 4th gen F bodies. I have also used it on the underside of the front surround on C3 corvettes to help reduce rock strike starring.
Wurth, Kent, 3M all make it, I'm sure others do as well.
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