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How to remove scratches from polycarbonate panels

Updated April 07, 2017

Polycarbonate plastics include Lexan and Makrolan. They are similar to polymethyl methacrylates like Plexiglas and Lucite, but polycarbonates are much stronger and comparatively expensive. They are used in products as diverse as DVDs, prescription lenses, aquarium windows and motorcycle windshields. Despite their strength, polycarbonates do scratch. Bayer Material Science, the manufacturer of Makrolan, specifically recommends plastic polishes sold by Meguiars, Novus and Plexus to remove scratches from its polycarbonate.

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  1. Ensure the polycarbonate is cool to the touch. Use a liberal amount of plastic cleaner to remove dust and dirt. Remove the plastic cleaner with a soft, cotton cloth.

  2. Test the plastic polish in a small, inconspicuous area to make sure it is compatible with your polycarbonate panel.

  3. Polish large or badly damaged areas using a power buffer and a clean, cotton bonnet. Do not operate the buffer at speeds higher than 1,000 revolutions per minute. Use a clean, new bonnet each time you buff polycarbonate.

  4. Buff smaller or less damaged areas with a clean, cotton cloth and a small amount of plastic polish.

  5. Warning

    Do not use plastic polish on coated plastics or eyeglass lenses. Do not use reusable cloths or polyester or rayon wipes to polish polycarbonate.

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Things You'll Need

  • Plastic cleaner
  • Soft, cotton, polishing cloths
  • Plastic Polish
  • Power Buffer

About the Author

Don Davis

Don Davis has been a professional writer since 1977. He has had numerous writing jobs, including writing news and features for the "Metrowest Daily News" and "Los Angeles Herald-Examiner." Davis has a Bachelor of Arts in English and history from Indiana State University.

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