After some discussion, a little disagreement, and couple of bets (cold ones) later it was time for the 1st coat. We decided to fiberglass the outside of the tank instead of the inside. One reason was the chemist wanted to prove out the epoxy unsupported but bonding inside a large wood tank. The other was to prove out that encapsulating the outside was as good if not better than laying out the inside.
Naturally, I had concerns. Coming from a technical background I had a lot of them. But then these folks
are sponsoring my tank and I do love a good challenge.
The fist pic is the material used - they call it Max ACR. It's a 2:1 mixture and pot life is about 60min. We mixed ours for a pot of 45min. It' super clear and has low odor. The thick stuff is Max Bond thixotropic. Its a 1:1 mix.
First thing after bonding the tank back together was to fill in screw heads, dents, voids, etc with the Max Bond.
I wanted the tank black so he mixed in some pigment into the batch along with a little acetone to thin it out a bit. This will allow a better soak-in. I rolled it on with a foam paint roller right onto the wood. We hand brushed it in corners and other hard to reach places. The wood will do a grain raise which is fine. We waited a week, sanded (break the gloss) the first coat and applied the final coat minus the acetone. There is only two coats.