Hey, I bought Kryon Fusion with hopes it will protect my plastic from sun rays and weathering, my stuff is outside. It turns out that immediately after spraying PLA with Fusion the plastic becomes discolored. Scratch that stuff.

I got this other stuff, called Rustoleum painters touch 2X. It seems to go on without causing a reaction, but it isnt really glossy once it dries, and it starts to peel off with any sort of physical abrasion, it is not durable. I need something a little more reliable, I want it to go on and stay glossy without coming apart on me. Any suggestions?