Painting roof gutters

aspen

Member
Working on my 2004 Sprinter rust in gutters.
Removed paint and rust, treated with
zinc phosphate and then sprayed
2k epoxy primer.
What material would you use to seal a
small gap where two sheets of metal meet inside gutter?
Thank you,
Val
 

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Nautamaran

2004 140” HRC 2500 (Crewed)
My marine side is a believer in polyurethanes... once the metal is properly sealed.

Products like 3M4200uv, 3M5200, Sikaflex 291, etc.
These have enough flow for surface smoothing, and are terrific for bedding new assemblies, but they won’t seep into crevices on their own. For that you’ll want an automotive seam filler/sealant, but I have no experience to offer in that domain.

-dave
 

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