If you need another source, I use [link=http://www.acp-composites.com/ACP-CAT.HTM]Aerospace Composites[/link] for the "G10". They call it a fiberglass laminate sheet and carry from .005 ~ .020 thick in up to 24" x 36" sheets. [link=http://www.cstsales.com/fiberglass_plates.html]The Composites Store[/link] carries it from .010 ~ .06 and call it fiberglass plate and carry it up to 12" x 48" sheets.

Hope this helps you...