Another use for coal tar epoxy?

[bigeasy1]

Ok,I picked up a 16' Starcraft aluminum boat(I know,I know its not a Seacraft)just for fishing some small lakes and ponds at home and have a question some may be able to answer.

I have to replace the rotted section of the deck floor in front of the windshield. after removing the wood I exposed the aluminum hull stakes/supports and all the rivets in that section.
Was thinking while that area is exposed,why not give all the rivets a coat of some type of sealer before I cover it back up again.
Anyone have any thoughts on rolling on some coal tar epoxy on these rivets?, or maybe some of that roll on truck bed liner sold in places like Walmart.?