1.   This will be converted into multi-layer polystyrene foam egg cartons.

2.   For years, polystyrene foam has been keeping our coffee hot and our beer cold.

3.   I thought of using the polystyrene foam sheets directly on the ceiling.

4.   With the ECO-Block system, Cotton said, a house starts out as a hollow-walled shell made of expanded polystyrene foam.

5.   The plant will manufacture polystyrene foam blocks that fit together like lego and are filled with concrete, Dolecek said.