What kind of glue to you recommend to repair a crack or a broken piece on a styrofoam headliner board?

What kind of glue to you recommend to repair a crack or a broken piece on a styrofoam headliner board? Do you just use the headliner adhesive?

If the headliner board is cracked only (small crack of 5 or 6 inches or so), you can put a piece or 2 of tape on the back side; and apply the material to it -- this should hold fine. When the material is glued to the headliner board, it will be strong enough to hold it in place. If however, a piece is broken off - like a corner where the visor hole is in the headliner board - then you would use the glue to piece it back together until you apply the headliner material. Once the headliner material is glued to the headliner board; it will hold perfectly.

Take a look at these pics, repairing a broken headliner board.