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109 votes
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Why is plexiglass not used for car windows?

Plexiglass is flammable. While it doesn't release toxic gases or excessive amounts of smoke, it is still rated B2 (normally flammable) and thus forbidden as interior material in motor vehicles, ...
Dmitry Grigoryev's user avatar
47 votes

Why is plexiglass not used for car windows?

Because of how it reacts in a collision. Auto glass is designed to shatter into small bits that are fairly dull, as opposed to large, sharp daggers. In the US, your car must be outfitted with glazing ...
Thomas Carlisle's user avatar
33 votes
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My car has moisture on the inside of the glass but other cars do not

There is something (very) wet inside your car. Feel around the floor, look at all the lowest points of the floor. If the front passenger floor is wet check the hoses to the heater core. Check all ...
Tim Nevins's user avatar
  • 1,036
23 votes

Why is plexiglass not used for car windows?

In addition to to the other factors mentioned. Plexiglass is not opaque to UV radition like silica glass. Passengers would get sunburned driving around exposed to sunlight. Used to be, when not all ...
TechZen's user avatar
  • 331
20 votes

My car has moisture on the inside of the glass but other cars do not

Do you use the circulate feature on your car? This should be turned off. It looks like the image below: I learned early on that this causes this exact issue in the winter. My theory is that the moist ...
JoelC's user avatar
  • 301
18 votes

Why is plexiglass not used for car windows?

Plastics are awesome. One of their characteristics is that they easily degrade in UV / sunlight. In my experience that is the weakest link in its usage. With that said, there are a whole lot of ...
zipzit's user avatar
  • 6,539
11 votes
Accepted

Is it safe to drive with a crack in the windshield?

There are limits on the amount of cracking allowed on a windscreen before it fails safety inspection. Obviously, if your car isn't in a state/county that requires safety inspection, that's irrelevant. ...
PeteCon's user avatar
  • 8,712
10 votes

My car has moisture on the inside of the glass but other cars do not

On my car the A/C is on all the time - as per the handbook, specifically to control the humidity inside the car. You should consider running with the A/C on over the winter and see if that makes a ...
Solar Mike's user avatar
  • 34.6k
8 votes

Why is plexiglass not used for car windows?

I think in answering this question you need to answer the initial question which is fundamentally, is plexiglass used for glazing in road cars. The answer to this question is that it is a very ...
Steve Matthews's user avatar
8 votes

Can I use a car wash to de-ice my car

No, you cannot. You state that " I would only have to scrape a little bit to get there safely", however this is not correct - you should clear ALL essential windows before you move the car - the first ...
Nick C's user avatar
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8 votes
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Does putting down the visors help defogging the windshield?

I think the visor is right… When you put the visors down (or at the "right" angle) they stop the airflow from the defroster vents from being able to move across the headliner. They may even deflect ...
dlu's user avatar
  • 14.5k
8 votes

How to repair a crack that is inside a windshield

Unfortunately there's no way to repair this. The only way to "fix" it is to replace it. Bullseye chips (original impact) can usually be fixed. They do it with some liquid fill and sucking out all of ...
Pᴀᴜʟsᴛᴇʀ2's user avatar
8 votes

My car has moisture on the inside of the glass but other cars do not

One thing that helps to deal with fog inside the car is a humidity absorber: Of course, absorbers can only trap some residual humidity, so if you suspect there's a leak you should find it and fix it ...
Dmitry Grigoryev's user avatar
7 votes
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Best routine for making a frozen car driveable

Get an insulating blanket for at least your windshield. You place this over the windshield at night, and it prevents frost from forming. The windscreen is the most difficult to get ice-free, so this ...
Hobbes's user avatar
  • 4,412
7 votes

Keeping windshield ice-free without heater

Does the air conditioner work? If so, you can blow COLD and DRY air onto the windshield from inside by setting the controls to: A/C, WINDSHIELD, OUTSIDE AIR. The cold/dry/outside air from the A/C ...
RoboKaren's user avatar
  • 278
7 votes
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Is it illegal in U.K. to drive with this windscreen damage?

It is illegal in the UK to drive a car that is not in roadworthy condition. If it would fail an MOT test, that makes it unroadworthy. The windscreen part of the UK MOT test is defined in https://www....
Weather Vane's user avatar
  • 2,314
6 votes

Is it a good idea to wax my windows?

tl dr: There are no major safety issues with using wax on your windows. I have done it before without issue. It will do a couple of things for you. First, it will fill in minor imperfections in the ...
Pᴀᴜʟsᴛᴇʀ2's user avatar
6 votes

Why is plexiglass not used for car windows?

it scratches too easily. thus, it cannot be used in a road environment
hw4hw34's user avatar
  • 61
6 votes

Can I use a car wash to de-ice my car

If it's cold enough to have ice covering your windshield, the leftover water will ice up your doors and locks. Depending how soon and how much you use your brakes, you could have some ice forming on ...
tlhIngan's user avatar
  • 12.2k
5 votes
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Old windshield chip

probably nothing to worry about but.... The integrity of the windshield is compromised. The chip in the nice smooth surface creates a point of failure. The chip is the weakest link in the chain, so ...
DucatiKiller's user avatar
  • 32.9k
5 votes
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Can I use a car wash to de-ice my car

I'm not convinced this would even work. The car has been cold-soaked to a temperature below 0. When you spray water on that cold surface, at least some of it will freeze. If the car wash used warm ...
Hobbes's user avatar
  • 4,412
5 votes

Does putting down the visors help defogging the windshield?

I would assume the visors would help to create / trap a column of slightly warmer air at the top the of screen instead of is dissipating across the headliner and into the cabin of the car.
Steve Matthews's user avatar
5 votes

Given my bad shoulder, what can I use to clean the inside of my windshield?

With a quick stroke of the pen (keyboard) using the Google, a search for "inside windshield cleaner" came up with a number of results. It looks like a shower back scrubber with a different name, but ...
fred_dot_u's user avatar
  • 4,560
5 votes
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Water on windshield reveals "trace areas" of wiper blades

As I understand your question, you have your car washed at an automatic car wash fairly frequently. Automatic car washes apply a wax / water repellent to the car near the end of the cycle. Even if you ...
MTA's user avatar
  • 6,405
5 votes
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What are these wiggly lines on the car paint and windshield?

I'll answer it myself since I've since found the answer after posting. As first postulated, these are indeed snail marks, against my best judgment. As revealed by this Family Handy post these are ...
Duarte Farrajota Ramos's user avatar
4 votes

Troubleshoot 2002 Chevy Impala Windshield Washer Pump

Either the switch is bad or there's a break in the wiring due to corrosion. Gain access to the windshield washer switch connector and check for power on the red wire. If you have power at the switch ...
Ben's user avatar
  • 10.7k
4 votes

Best routine for making a frozen car driveable

Most diesel engines have block heaters for cold weather starting. This helps ease of starting, but also keeps the coolant at a higher than ambient temperature which helps reduce time to warm the ...
CharlieRB's user avatar
  • 9,015
4 votes

Keeping windshield ice-free without heater

The easiest thing you could use right now is a de-fogging agent. Anything which will keep the humidity off of the windshield. What I'm talking about is something like Rain-X. At least this should keep ...
Pᴀᴜʟsᴛᴇʀ2's user avatar
4 votes

What's the ideal following distance to prevent rock strikes?

The obvious answer is "far away". Rocks get thrown up with variable height and speed. If a rock doesn't go high enough to clear your car in the first place, the only way to avoid it is to be far ...
Nuclear Hoagie's user avatar
4 votes

Long crack in windshield: What could have been the cause and what can I do?

Mine cracked right across after being parked in hot sun for a couple of days (on private property so no vandalism). In UK that would fail the standard vehicle roadworthiness test and so I replaced it ...
Weather Vane's user avatar
  • 2,314

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