Things You'll Need
Instructions
Pour a mixture of one part water and one part bleach into a bucket. Fill up the bucket so that the plastic item will be completely submerged in the solution.
Place the plastic item into the bucket. Allow the plastic item to soak in the solution for several hours, or until it turns white.
Remove the plastic item from the bucket, and rinse the plastic off with clean water. Dampen a sponge with water and add a drop of laundry detergent.
Scrub the sponge over the plastic item to remove any dirt and grime. Rinse the plastic item in clean water, and then allow the item to air-dry.
Check the plastic item for discoloration and dirt. If the item needs more cleaning, rub superfine sandpaper over the plastic to remove yellow discoloration and grime.
Continue rubbing the plastic with the sandpaper until the item is clean and no more discoloration remains. Dampen a washcloth in water, and then wipe the cloth over the plastic item to rinse off the dust.