Garage Door Window Cleaning

Garage Door Window Cleaning (Lexan™)

How to Clean Your Garage Door Windows - Do's & Dont's | Clopay

Supplies Needed:

  • Mild dish soap or detergent (Joy, Palmolive Liquid, Top Job)
  • Lukewarm water
  • Soft, lint-free cloth or sponge
  • Chamois or cellulose sponge
  • Mild automobile polish (Johnson Paste Wax, Novus Plastic Polish, Mirror Glaze Plastic Polish)
  • Masking/adhesive tape or lint removers (for paint removal)
  • Butyl cellosolve (for graffiti removal)


  1. Prepare a mild soap solution using lukewarm water. Use a mild dish detergent like Joy or Palmolive.
  2. Apply the diluted soap solution to the Lexan window using a soft cloth or sponge. Avoid using brushes or abrasive scrubbers.
  3. Gently wash the window surface to lift dirt and debris. Do not scrub aggressively or use squeegees or sharp tools.
  4. Rinse thoroughly with lukewarm clean water. Be sure to remove all soap residue.
  5. Dry the window using a chamois or moist cellulose sponge. Thoroughly dry to prevent water spots.
  6. For light scratches or swirls, polish the window with a mild automotive polish. Test polish on a small area first.
  7. For removing paint or graffiti, use masking/adhesive tape or lint removers. Butyl cellosolve can also be used for graffiti.
  8. Avoid cleaning Lexan in direct sunlight or at high temperatures. Heat can dry soap too quickly.
  9. Never use abrasive cleaners, squeegees, razor blades or other sharp tools. Do not use benzene, gasoline, acetone or carbon tetrachloride.
  10. For routine cleaning, wash approximately every 3 months. More frequent washing may be needed in humid or dusty environments.

Safety Tips:

  • Wear gloves and eye protection when handling cleaning chemicals.
  • If using a ladder, follow proper safety precautions.
  • Support the window pane fully when cleaning to avoid pressure on edges.

Following these proper Lexan polycarbonate window cleaning procedures will maximize the lifespan of your garage door windows.

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