A common problem you may have with any type of clear plastic, such as safety glass lenses and acrylic furniture items, is scratch marks. Even when you’re careful when handling these items, they are still subject to regular wear and tear. While scratch marks in plain plastic could be inconvenient, there is a means to eliminate both lighting and slightly deeper markings up to .5 millimeters in depth. Sandpaper helps you buff out the scratches and restore the plastic to better condition.
Moisten a piece of 800-grit sandpaper with a little bit of water. Rub the paper above the scratches using medium pressure and a circular motion till they begin to disappear. Continually re-moisten the seams as you work so that it does not dry out.
Use the identical technique with 1200-grit sandpaper if the scratches still remain. Continue to soften the paper and then rub it over the scratches till they have been gone.
Clean the plastic with a moist cloth to remove any sandpaper residue. Follow up with a dry cloth.
Put a little bit of metal polish on a dry cloth and rub it over the plastic in a circular motion to revive shine to the region, as the seams can allow it to be dull. Keep adding more polish to the cloth and applying it to your plastic till you’re happy with the finish.