What does stick to aluminum?

[malconium]

I am working on repairs inside of my 1973 31' before I put the interior skins back on. There are various holes in the body where things used to be installed that are not longer there. There are also a number of place where seams or rivits leak a bit. I have thought that I would try to seal up as much as I can from the inside (along with whatever makes sense from the outside of course). I tried aplying some Elastoseal roof coating to see if it could be used to coat seams on the inside. As it turns out it does not stick to aluminum very well. I am going to have to rub off what I did put on and use something else. I had hoped to use something that I could brush, roller or maybe even spary on rather than using something from a tube (like Vulkem). So here are some questions:

1.) What types of things do stick to aluminum besides Vulkem? What about autobody undercoating? What about pickup truck bed liner? Does anyone have any experience spraying these types of things on the inside of their AS?

2.) Can a fiberglass body repair kit be used to patch small holes from the inside? Will it stick and stay water tight? My eventual intent is to paint the outside so I would prefer not to fill odd holes with rivits from the outside. I will eventually fill them with Bondo and sand them smooth before painting.

3.) Is Vulkem perhaps available in some other container besides just a caulking tube so that it could be applied more easily with a spatuala?

Any thoughts?

Thanks,

Malcolm