Now that you have your headliner removed and your form made it\'s time to clean you headliner boards. Use a wire brush to remove the deteriorated foam. This will not completely remove all of the foam and some gluey sticky adhesive will remain. We wiped these down with an orange cleaner diluted in 20 parts of water. you must be very careful to not use chemicals on the paper face. Only wipe it down lightly. The primer paint will seal it.