Quote Originally Posted by 39PitCrew View Post
Wonder if either of these would work under a riveted plate

http://www.homedepot.com/p/Rutland-1...-64C/202218155
or maybe
http://www.homedepot.com/p/Rutland-3...96-6/202218157

I would NOT rely on this stuff. The 3M material that Pranav posted is a far better material that will actually expand in a flame and seal the hole even better. It is required in all penetrations in fire partitions in commercial construction.

Also, anyone that has a fear of fire, feel free to stop by my shop sometime and look at some parts I have sitting outside. I would suggest that you use steel to seal holes in firewalls. Aluminum is pretty well pointless in a serious fire and becomes molten rather quickly. Those of us with composite body panels should be even more concerned and you F-body guys with plastic fuel lines worse still. This was a little fire compared to what CAN happen. I have seen the end result of REAL bad fire and it's scary as hell what melts completely away as if it were never there!!!!