My question is if I will be able to get the true clarity of the tritan copolyester material using a polished aluminum mold. Also I was wondering what type of adhesive you suggest to use when assembling pieces of Tritan Copolyester?

True clarity can be achieved with Tritan using a polished aluminum mold. Eastman customers have had many successful applications that were first prototyped in aluminum molds.
There are several Henkel adhesives that work well to assemble Tritan pieces. 

- Tritan Expert