Well now that your panels are reshaped it\'s time to apply the headliner. Clean the headliner with Simple Green or an Orange cleaner, well diluted. Apply the wall paper adhesive to the back of the headliner and apply the headliner to the backing board. NOTE: make sure you have a clean work area and don\'t get little crappies in between the headliner and the board. Also when turning your board upside down use a wood support on each outer edge to retain the reshaped bow. It would be ashame to crack your fiberglass by trying to lay the panel on a flat surface. Oh yes also note you can see a sheet of thin plastic has beed added to the back side of the board. This has been done to allow any future water leaks to drain off of the headliner board. Just a precautionary measure.