Carbon Fiber Printer Bed

Once upon a time i was looking for a printing platform for my printrbot simple after I had upgraded its print area. This lead me down the usual rabbit hole for a flat and available surface to print on.
Things tried:
1. Glass from an old computer scanner - I cracked three before giving up on them, they are tempered glass and will not be cut. After that they shattered from heat shocks.
2. Home Depot Glass Pains - These could be cut but cracked when shocked from heat.
3. Aluminum Sheets -