How to Remove Mineral Film From Lexan

Lexan is a highly shatter-resistant and lightweight plastic used for camping and sports water bottles. These bottles are handy for water because they withstand extreme temperature changes without shattering. Over repeated exposures to hard water, the Lexan accumulates mineral films and hard water stains. Because Lexan does scratch, using abrasive cleansers is out. Use a sequestrate-based cleanser to scour and remove the film. Sequestrates work to remove the stains via a chemical reaction, thus preventing scratches or damage to the Lexan.

Things You'll Need

  • Sequestrate cleanser such as Calgon
  • Sponge
  • Bottle brush
  • Warm water and sink
  • Drying rack
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Instructions

    • 1

      Fill a sink with warm water and 1/4 cup of the sequestrate-based cleaner. Read the container label of your cleaner to check that it has the needed sequestrates. Keep a sponge in the water to absorb the water and cleanser.

    • 2

      Scrub the mineral film on the outside of the Lexan with the sponge. Let the bottle soak for 15 to 20 minutes. Rinse and inspect. Repeat the scrub if there is still a film on the outside of the container.

    • 3

      Dip the bottle brush into the water and cleanser solution and scrub the inside of the bottle. Scrub the sides and neck. Take time to scrub around the threads at the neck and cap area. Rinse and inspect. Repeat until the film is gone.

    • 4

      Wash the bottle in dish soap and warm water. Rinse, and place on the drying rack.