Tail Light Resto Kit. Plastic lenses become dull and scratched over time. Use Autosol on a soft cotton cloth to remove light scratches and discolorations. Reflective Aluminum aer. paint restores the brightness to lamp reflectors. For lenses that need more attention use the included Plastic Compound on the 6in. String or 6in. Loose Section Buff. The String Buff runs cool to prevent soft plastic parts from melting, for more aggreassive smoothing on harder plastics use the 6in. Loose Section Buff.