I have .060 Lexan on order since I can't pull enough vacuum to completely form .090. I posted a pic above showing a sheet that I thought I overheated. As it turns out I didn't overheat it. Polycarbonate absorbs water from the environment. It must be baked for a time to drive out the absorbed moisture. The bubbles are actually little pockets of water that flashed to steam in the oven. Styrene and ABS are so much more forgiving.
I tried again anyway:
Painted for clarity.
It actually looks better in person than that photo
You may have been refering to tail light tinter, just google it and it should come up, usually they have many colors, so if you wanted to add some kinds of scratchs or such, I orderd some black a while back for my Z, you put it on like nail polish
Bloodl3tt3r:
I plan to tint the visor by painting it with automotive clearcoat paint mixed with a little black. I remember seeing ready to go spray cans for tinting plastic taillight lenses in an auto parts store but I can't seem to find it now.
SpartanIII-0324:
The vacforming setup is pretty much what you see in the photos. There is a shop vac connected to the base. The frame holding the plastic goes into the oven. When the plastics sags, I take it out and press it down on the base. there is a foam rubber gasket to seal the frame and base to each other.
I've had four people PM so far looking to buy one. Assuming I don't get swamped with orders, I'll make them for free other than the shipping cost.
Thanks for your support!