I love how this build is progressing! Your photos and explanations are very clear and concise, and I love how I can track every step of the way! Keep up the fantastic work!
I'm using Smooth-On laminating epoxy. I mixed in some black tint, and some fumed silica (Cabosil) thickener to make a gel coat.
This was tough to brush into the mold, it sticks more to the brush than the rubber. I did my best here.
Then put in two layers of glass, with some straight epoxy.
The first glass layer was a very thin type from the hobby shop. It's almost too thin, 3/4oz, to be any use here. I thought it would be better for capturing detail, but the gel coat took care of that. The second layer was regular Bondo cloth, I think I'll just do two Bondo layers from now on.
Sorry to leave y'all hanging, I had a setback. I've gotten so used to mixing stuff with a 10:1 ratio, that I overlooked that this epoxy is 10:3! It sat for three days and it's still rubbery.
So I started over with the right mix, and got two shells that are much better. I used two layers of Bondo cloth. It's still pretty thin, I may do three layers next time.
I sanded them down, a bit too much. It's a little thin, I might be able to fix it. I also cut the bottom apart. I pumped up the brightness on these to show the detail.