You know, I didn't put any seam sealer between the fiberglass and visor... and now I'm realizing that would have been a good idea. That seam is tucked up pretty high above the windshield and under the fiberglass cap, but I imagine some water could sneak through when driving into the rain at high speeds. I don't recall there being any sealant in that spot from the factory, assuming mine was original... but it does seem like a good idea.
I riveted the gutter on before I installed the visor, so I had to kind of slide the visor under the gutter to install it... I had a brief moment of panic thinking I had done it out of order, but it was pretty easy to get it in there. But it would have been tricky to manipulate without making a mess if I had seam sealer on the visor. So if you do use a sealant, I'd rivet the visor in first, and then do the gutter.
The seam sealer will probably booger up your clecos (btw I definitely recommend getting clecos if you can). but it's probably worth sacrificing a few of them.
I riveted the gutter on before I installed the visor, so I had to kind of slide the visor under the gutter to install it... I had a brief moment of panic thinking I had done it out of order, but it was pretty easy to get it in there. But it would have been tricky to manipulate without making a mess if I had seam sealer on the visor. So if you do use a sealant, I'd rivet the visor in first, and then do the gutter.
The seam sealer will probably booger up your clecos (btw I definitely recommend getting clecos if you can). but it's probably worth sacrificing a few of them.