How to Polish Clear Plastic That Is Dull?

Updated February 21, 2017

Clear plastic, often used to make eyeglass lenses and display cases, is almost always meant to be transparent. Over time, clear plastic may become scratched and dull, and therefore difficult to see through. You can polish your plastic items and make them clear and shiny again with special cleaning products and common household items.

Squeeze a bit of toothpaste onto a soft cloth or dip the cloth into a paste of baking soda and water.

Rub the cloth over your plastic in a circular motion.

Rinse your plastic with water and dry off with a soft cloth. If your plastic is still dull, you will need to use an etching compound.

Coat both sides of your plastic thickly with an etching compound. The acid in the compound will remove the outer coating of plastic along with any scratches and imperfections, leaving a polished surface.

Wait for five minutes and then rinse off the etching compound with water and dry your plastic with a soft cloth.

Things You'll Need

  • Soft wool or cotton cloth
  • Baking soda or toothpaste
  • Etching compound with hydrofluoric acid
Cite this Article A tool to create a citation to reference this article Cite this Article

About the Author

Christina Sloane has been writing since 1992. Her work has appeared in several national literary magazines.