On Mon, 5 Nov 2007 18:40:52 -0500, "Nelson"
wrote:

Its tar on the aluminium floor but it looks like seal paper over top lol

Hmmm - I wonder...

There is a putty like substance that is sold for antenna work - it
seals connectors and entrance holes in buildings. It looks like tar,
but it's not - it's called Connector Seal, Coax-Sea and other names.
I've seen guys use it to plug holes in boats in particular aluminum
boats.

It's basically a rubber base compound and should dissolve with nail
polish.

Give that a try.