Thickness varies from .20 to 1.5 mm. 2mm is very thick and had limited application but good for structural supports. Shame that model zone down here closed down. Materials are limited. Is it still open up north?
No. It closed down everywhere i'm afraid.
And my apologies. I never realised you were in the UK.
I get my supplies from a local vacuum forming company. They use a local distributor and i give them an order of what i want, then they add it to their next order and get it delivered in a day or two.
The sheets i get are matt black, 54" by 26". I usually get ten sheets of .080, five sheets of .040, and five sheets of .020
The last order i put in cost £170 delivered to the vacform company.
If you get your yellow pages and find a vacforming company locally, pop your head in the door and ask if they can help you out.
Even if they can't, they might give you the number of their distributor.