What are you fellas using to seal rain gutters? Wasn't sure if I should just use regular seam sealer or if there is something better. Also, I cleaned out the old sealer and ground out a bit of rust (nothing too severe) but there is still a little rust down in the seams that I can't get to. My plan is to use some POR-15 and work it down into the seams and then topcoat with epoxy primer. I assume that I would use the seam sealer over the epoxy primer and then epoxy over the top again before color coats. Does this sound right? I imagine there will be some shrinkage of the sealer so I'm thinking it will need to cure well before top coating?