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Old 02-05-2013, 05:12 PM   #1
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Windshields!

Second windshield replaced in 8 months for a rock chip that split the windshield in half....what do they make these things out of???

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Old 02-05-2013, 05:16 PM   #2
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I questioned that too. Mine broke after 2 weeks, no visible chip in sight. Replaced it for free from the warranty

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Old 02-05-2013, 05:19 PM   #3
Knows a couple things...

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Our windshields are made from the same multi-layer shatter-resistant glass any other windshield is. But being so flat & right up there in the windstream, it is simply more susceptible to damage from flying rocks, etc. I've had 3-4 broken windshields on my TJs over the years.
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Old 02-05-2013, 06:45 PM   #4
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So I'm kind of curious. I once asked the people at the local windshield repair shop if it was possible to put something like lexan or plexiglass, or anything else that would be hail/rock proof in my car. They said its impossible since that windshield curves. Would it be possible to put that in a jeep windshield since our windshields are straight?
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Old 02-05-2013, 07:02 PM   #5
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Polycarbonate (Lexan) scratches and gets hazy pretty bad like the soft windows in our TJ's, but something like Acrylic or Plexiglass might work. Although, it too would be prone to scratching way more than glass, and you'd most likely be replacing it more often than regular glass. Someone should try this.
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Old 02-05-2013, 07:13 PM   #6
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Yeah after owning a few airplanes through the years with plastic windshields they are very easily scratched and IMHO would not be at all suitable
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Old 02-05-2013, 07:13 PM   #7
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First, those materials (plexiglass, polycarbonates, Lexans, etc.) are softer than glass & they will eventually haze up or scratch from dirt/dust in the air, the windshield wipers, paper towels, etc. As importantly, they are illegal for use on the highways.
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Old 02-05-2013, 07:26 PM   #8
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Jeep Windshields jeep glass baja cj dj wrangler lexan polycarbonate off-road

As Jerry stated, not DOT compliant. They claim it's due to them being difficult for rescue personnel to remove after an accident.
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Old 02-05-2013, 09:12 PM   #9
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Ditto....Only thing that could help is thicker safety glass like what Mini Cooper puts in their vehicle. Doubt if Jeep would do a re-design that's going to cost them more money.
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Old 02-05-2013, 09:33 PM   #10
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Quote:
Originally Posted by Jerry Bransford View Post
Our windshields are made from the same multi-lainst#er shatter-resistant glass any other windshield is. But being so flat & right up there in the windstream, it is simply more susceptible to damage from flying rocks, etc. I've had 3-4 broken windshields on my TJs over the years.
Another factor could be the angle of the windshield. Typical TJ windshield is installed at about a 60 degree angle VS the much lower angle found on many newer vehicles. The angle on my 300C is only 28 degrees. When a rock hits the glass it has a better chance of deflecting some of the energy up and over. Although the 300 is only 8 months old I have already replaced the windshield so what do I know.....
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Old 02-05-2013, 09:35 PM   #11
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My jeep is one month old and already a chip...I guess its just the joys of owning a Jeep!
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Old 02-05-2013, 09:36 PM   #12
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It's the angle of the windshield... I drive many miles a year and I normally have to replace mine twice a year...
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Old 02-05-2013, 10:49 PM   #13
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Quote:
Originally Posted by Jerry Bransford View Post
First, those materials (plexiglass, polycarbonates, Lexans, etc.) are softer than glass & they will eventually haze up or scratch from dirt/dust in the air, the windshield wipers, paper towels, etc. As importantly, they are illegal for use on the highways.

Ahh Ok makes sense. I'd been thinking about why no one ran windshields made out of tougher materials for awhile. I guess that's why lol
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Old 02-06-2013, 09:35 AM   #14
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Yeah, I imagine most of it's due to the upright-ness of the windshield. I've had some pretty sizable rocks just bounce right off of the windshield of my Camaro, but that thing is raked back like whoah. I've had one teeny rock put a good sized chip in the Jeep's windshield.
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Old 02-06-2013, 10:09 AM   #15
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I had a rock from an oncoming lane bounce over the concrete divider, smash into my windshield and spray glass into the cab. I'm just glad I was wearing sunglasses.
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Old 02-06-2013, 10:32 AM   #16
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I was having to replace my windshield every 2 years to pass NJ safety inspection. Just before my last inspection they stopped safety inspections and only do emission inspections. My TJ has a big crack on the RS from top to bottom and some chips and they did not say a word. I will not replace it until the drivers side gets cracked and the police start giving me a hard time.

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