Polycarbonate: what is it?

Polycarbonates (PC) are a group of thermoplastic polymers containing carbonate groups in their chemical structures. Polycarbonates used in engineering are strong, tough materials, and some grades are optically transparent. They are easily worked, molded, and thermoformed. Because of these properties, polycarbonates find many applications.

Polycarbonate is also known by a variety of trademarked names, including Lexan, Makrolon, Hammerglass and others.

How does it compare to other plastics?

Acrylic (plexiglass) is also often used for windshields but is it as good as the polycarbonate (Lexan)? Let's compare them:

Acrylic is more likely to chip, has less impact resistance than polycarbonate, but is has better clarity.

Polycarbonate is safer, bulletproof (we never know...) it's easier to work with (less likely to break) but it's more expensive.

Personnaly, I prefer something more durable and a windshield who doesn't crack if hit by a branch or a flying rock...

How should you clean it?

Use generous amounts of water to rinse your windshield and soften dried dirt.

Make up a solution of water and ordinary household cleaner, dishwaher soap or a mild soap, and use this to wash the windshield; a sponge or soft cloth should be used to gently remove dirt and grime.

Rinse with clean water and repeat washing if necessary.

After final rinse dry off with a soft microfiber cloth.

Never use rough, abrasive cleaners, squeegees nor sharp objects such as razors to clean polycarbonate sheeting. These can damage the protective coating on the roof sheet’s surface.

Stay away from abrasive or highly alkaline chemical cleaners (like Windex).

When you do use chemical cleaners, do not leave them on the polycarbonate sheets for long periods of time. Rinse them off immediately with cold water.

Also, if you use chemical cleaners, do not use these in direct sunlight because they may stain the polycarbonate.

What type is using Dirty Products? Is it scratch resistant?

No it's not scratch resistant. The MR-10 Scratch resistant polycarbonate is about twice the price, that's why Dirty Products can sell windshields at such a low price.

However, there is a solution. You can use synthetic polymer wax. It's available in most store where car care products are sold. It takes about 5 minutes to treat your windshield and it will give a very good protection.