Things You'll Need
Fine grade sand paper
Polishing compound kit
Several microfiber cloths
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Rub the sandpaper over the entire surface of the plastic in small, circular motions, this evens out any pitting-type damage that the plastic may have sustained.
Pour some of the polishing compound onto your microfiber cloth.
Rub the polishing compound into the plastic in a circular motion.
Repeat as needed to polish the entire object.
Put a small amount of wax onto the other microfiber cloth.
Coat your plastic item's surface with this wax, rubbing in a circular motion and adding additional wax to your cloth as needed.