We sell Expanded Polystyrene Sheets in all density's and thickness.  Polystyrene sheets can be use in building projects, for isolation in roofs, walls and floors, in cold rooms, for arts and crafts, school projects, diy, decor and the list goes on.  Easy to cut with a sharp knife and to be painted with a water base paint(arts and craft paint) You can use polystyrene glue, wood glue or acrylic silicone to glue it onto something