Aluminum rivets on stainless firewall
 

I notice a lot of AN rivets used on the firewall. Any concern for galvanic corrosion with doing this?

Apparently not much more than concern for them melting out in a fire.

I am always concerned with dissimilar metal corrosion but I live on the Florida coast and see its devastating effects all the time, I used Tef Gel on these rivets. Corrosion Scares me as you can see.

I wet set mine with 3m fire barrier 2000+, but at the end of the day, there a plenty of RV's built to spec with the stock riveting process. I just went that additional step because of corrosion I have seen on firewalls of other aircraft.
Tom.

Your post peaked my interest so I searched the internet on the topic. Found this site with a good description of the mechanism.

http://www.ssina.com/corrosion/galvanic.html