On Mon, 29 Sep 2014 14:58:20 -0400, Ed Pawlowski wrote:

On 9/29/2014 12:05 PM, micky wrote:

Should I be using steel pop rivets instead? What are the advantage of
them?


Use steel in steel, aluminum in most everything else.

Is that because of electroylsis or something similar?


Actually, you could use aluminum is steel too, but you usually get more
strength with steel and since you are protecting it with paint anyway,
the rivet won't rust.

With aluminum, you don't have to add any additional protective coatings.
And alunum and steel are not your only choices. There is also Monel
and stainless steel - and likely others as well.