Forever Black Truck Bed Liner Gel restores a like-new black finish to your truck bed liner. Forever Black is a professional quality, semi-permanent color restorer that puts the black luster back into faded spray-in or drop-in bed liners. You'll see the difference instantly! Forever Black Truck Liner Gel is not a paint! Paint sits on top of the surface. Forever Black is a pigmented gel that soaks into the liner's pores to re-color it. Your truck bed liner looks the same, just cleaner, blacker, and newer.