The Murphy Builders Site

That stuff is not really suitable for sealing rivetted surfaces. It is
thicker than most caulks. I'd suggest applying it later.

I'd put all the rivets in. They come out pretty quick if you find you
have to replace a couple with cowl screws later but I think I positioned
most of the cowl screws between the rivets.
Ken

mbetti@up.net wrote:

Hi all,
Just finished the wiring of the panel and looking at installing the

firewall permanently. I've read in the past about using the 3M fire
barrier sealant. Do I need to put this stuff in the joint or can I put a
bead on the inside? It's kind of a tight fit putting in the firewall
with everything else already riveted and I am afraid I will just push
the sealant out of place. Are all the rivets put in now or do you leave
some out for the cowl install later?

Thanks,
Mike Betti
771E

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