It actually took me 3 small proseal sessions to get through sealing the two rows of stiffeners, the fuel drain, and the fuel pickup fitting to the access plate. I measured just 10 grams of the white stuff to 1 gram of the black stuff. Even with this small amount of proseal, my hands and wrists got tired mixing the thick black goop. It really wasn't too bad at this point. The stiffeners were back riveted to the skin while everything else was squeezed. The hardest part was determining if the rivets were set properly. I think I over set some of the rivets while initially back riveting the stiffeners in place. Very hard to tell will all of the goop over everything. Cleanup was messy but went quickly with the MEK. Once the bottom skin, the outboard rib, and the access plate were cleaned up I set them aside to admire. My first proseal session wasn't that bad at all.
Stiffeners Prosealed and riveted to the bottom skin
Bottom of tank with stiffeners and drain sealed and riveted
Outboard rib tooling hole and fuel pickup sealed to access plate
