2aad6ef1_Coasters_com___Model_Materials__WHAT_IT_IS_USED_FOR
[ITEM] Styrene plastic 4 X 8 foot sheet, .030 mil thickness Description - HIPS (high impact polystyrene) .030 48 X 96 white [WHO MAKES IT] Various (I highly recommend Laird Plastics,even if you have to have it shipped to you! Great Customer Service, fair price ) [WHERE TO GET IT] My personal supplier, Laird Plastics has about 50 locations in the US (and a few in Canada), HOWEVER, they may have a minimum dollar amount on orders. Laird Plastics Locations If not then Google "Styrene Plastic (with your zip code)" to find a local seller [WHAT IT IS USED FOR] 
Track, car bodies, station, tunnels, etc.
Model Coasters.com - Model Materials
WHAT IT IS USED FOR