Suggestions for sealing the interior..

So I have been working on my 1974 Sovereign. Back in January I removed all the interior skins and all of the old insulation. Currently I am working on sealing up the interior before installing the new insulation. I read through many of the threads and decided to go with the Loctite S40 on the seams. Then I was curious about trying to seal the rivets as well as a preventative measure. I have some leaky rivets that I plan to replace as soon as the new ones come in. But I figured maybe if I could apply something to help prevent leaks after reinstalling the interior skins, then all the more better. I found a product by 3M. It’s 3M 08656 Paintable Seam sealer. After getting it, I realized that it could give off odors if used for interior applications if not able to dry properly.

Has any one used this product before?

If you have, did you prime the surface before applying it?

Has anyone used a different product?

Open for suggestions, so I figured I should turn to the experts.