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303® Aerospace Protectant™ on Plexiglass

303® Aerospace Protectant™ cleans up Plexiglass!

Plexiglass is a term used loosely to refer to several "hard" clear plastics used in lieu of glass, two of the most common being Lexan® and acrylic.  You see this material every day.  The enclosures at the bus stop; the windows on subway cars, buses, trains and aircraft; the windshields on race cars; the domed vent covers on the roof of a motor home or travel trailer; the clear panels that keep party-ers from falling out of the sky boxes at football stadiums and protect fans from 100 mph hockey pucks; a motorcycle's windshield, the visors on fireman and motorcycle helmets and a thousand other uses.

These are great plastics, but share some common downsides:

  1. They oxidize (fog, haze) over time due to UV exposure.
  2. They scratch fairly easily.

When visibility degrades to the point to where something must be done, the manufacturers recommend one thing:  Replacement! 

The thing to do is prevent the oxidation and minimize the scratching.  The product that does just this, and wonderfully, is 303® Aerospace Protectant™.  Start using 303® Aerospace Protectant™ when the material is new and reapply periodically:

  1. To protect against UV light and prevent oxidation.
  2. To repel smudging, dirt, and grime, extend the time between cleanings and make it clean up easier when cleaned.
  3. To reduce scratching by making the surface so super smooth that objects coming in contact with the 303®-treated surface that would normally dig in a scratch are often deflected instead.

Removing Scratches & Oxidation from "Plexiglass"
Clear plastics can be safely "buffed out" to remove scratches and restore visibility.  A variable speed buffer, synthetic wool pads and cutting compound are all that is required.  The two factors involved with doing it right:

  1. Light Pressure.
  2. Low RPM. 3M Super Duty cutting compound, available from most stores selling automotive paint, is recommended.

Follow these Steps:

  1. Wash surface to remove any built up dirt or sand.
  2. Squirt a little cutting / buffing compound on the wool pad, spread it on the surface area to be treated and with light sweeping motions polish the surface.  Too strong a pressure or holding the buffer in one spot can burn and ruin the material. If doing a large area, periodically remove the cutting compound buildup from the pad with the "spur" made for this purpose, available from the cutting compound supplier.
  3. After cut-polishing, finish the job with 303® Aerospace Protectant™.  On a large area, do a 3'x 3' area at a time.  On the area to be polished, mist on a little 303®. With the buffer and a fresh wool pad, with the buffer on low rpm spread the 303® and then turn up the rpm (never more than 1800) and polish it in until dry, constantly moving the buffer in a sweeping motion.   Again, too much pressure or holding the buffer in one spot can burn & ruin the material.  The benefits of finishing with 303® A. Protectant are:
  • Smaller and hairline scratches disappear and a like-new clarity is restored.
  • Protection against UV caused oxidation.
  • The treated surface repels dirt, smudges, stains, hard water spots, snow, ice, etc.  The plastic stays cleaner longer and cleans up easier.
  • Resists scratching.

For continuing UV protection, reapply 303® Aerospace Protectant™ every 2-3 months of exposure.  Spray on, wipe dry, and polish to a high gloss.

Clean surface.  Spray on 303® Aerospace Protectant™.  Wipe completely dry with a clean, dry, absorbent, non-abrasive cloth.  Then with a fresh cloth, buff to a high gloss.

Use on Motorcycle Windshields, Helmets, Visors, Goggles, etc.. etc...