Well, not much tonight. I mixed a pretty big batch (55g) of sealant and stuffed it into one of the 30 cc syringes I bought from amazon.
After an hour of painfully reaching into the tank to do some rivet encapsulation, I ended up with all rivets encapsulated. (Well, except for the inboard rib…haven’t even riveted that one in place yet.

Some of these aren’t the prettiest, roundest globs, but I made sure I didn’t have any (obvious) paths to the rivet.
Another shot. I apparently took this one to prove to you that I did more than one rib.
The 55g of sealant in the 30 cc syringe did 6 of the 7 ribs in the tank.
1.0 boring hour.