How To Care For Lexan Doors

I love my Lexan screen door modification. In fact, it’s probably my favorite modification to our RV. Unfortunately, I assumed that I could clean it like a regular glass window. Boy, was I wrong!

From the first day my husband installed the door, I had been cleaning it with Windex and paper towels. For the first couple of months, everything was fine. I had no indication that I wasn’t cleaning it properly until one sunny day, one of us bumped into the door and smeared sunscreen on it. We didn’t notice it at the time, but later in the day I noticed some hard white stains. When I went to clean them off, they didn’t budge. They appeared to be baked on from the sun.

I foolishly grabbed some 409 and a plastic scouring sponge. That was a big mistake. As soon as I put the scouring pad to it, I knew I had screwed up. The lexan began to look cloudy and scratched. I stopped what I was doing immediately, but the damage was done.

After looking it up online, I realized I had been using all the wrong cleaning supplies on it. You can’t use Windex, paper towels or basically any household cleaner. What you can use is lots of water, a soft cloth, mild soap, toothpaste or (questionably) Pledge. We tried to clean the damage I had done with toothpaste, but it was too far gone.

I’ll take a picture to attach to this post soon to show you what I did to mine. It’s not pretty. One of these days, I’ll talk my husband into replacing it for me again.

Below is some good info I found on the internet about caring for Lexan. As you can see, I was doing everything wrong:

Lexan is a brand of polycarbonate resin thermoplastic that is a common replacement for glass and Plexiglas. Lexan is stronger and more durable than glass, yet it provides many of the same benefits as glass. Lexan is used not only in windows; it can also be found in windshields, helmets and even water bottles. When caring for Lexan windows, you must use the appropriate products. Certain items can cause the Lexan windows to become scratched or cloudy.

Cleaning Lexan Windows

  • 1Rinse the Lexan windows with cool water. Use a water hose for easier access.
  • 2 Wipe the windows using a microfiber cloth moistened with water. Wipe in a crosswise and up-and-down motion.
  • 3 Spray Sumner Laboratories 210 product onto the windows. This is a chemical made specifically to clean Lexan windows. It will not scratch or turn the windows cloudy.
  • 4 Wipe the windows using a clean microfiber or terry cloth. Gently wipe in a back and forth motion.
  • 5 Allow the windows to air dry.

Removing Scratches from a Lexan Window

  • 1 Rinse the windows with water to remove any dirt and debris.
  • 2 Apply a dime-sized amount of mild toothpaste onto a soft cloth. An old t-shirt works well.
  • 3 Wipe the toothpaste gently in a side-to-side motion against the scratch. The mild abrasives in the toothpaste will reduce the scratch.
  • 4 Rinse the windows with water to remove all the toothpaste residue.
  • 5 Dry the windows with a soft cloth.

  • Do not use Windex, eyeglass cleaner or any product that contains isopropyl alcohol on Lexan windows.
  • Do not use paper towels on Lexan windows.

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