100

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, including windows. Here is a relevant US standard if you're interested in details. Collision behaviour mentioned by Thomas is also a crucial property, especially ...


43

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 material that meets certain specs, and material type is not specified. If anyone could get plexiglass to satisfy those specs, I am sure it would be lower cost ...


34

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 window gaskets. Check the spare tire well and the trunk gaskets. Check to make sure that all windows roll up completely. A fold or tear in a gasket or debris can ...


22

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 cars in hot climes had air conditioners, you could tell those drivers who did not because they'd roll down the driver's side window and sometimes put their ...


21

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 warm air we breath out is circulated over and over and then sticks to the cold windows. When you shut that option off, you are pulling in fresh (dry) air from ...


16

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 plastics used on modern cars. Generally headlamp lenses are made of polycarbonate. The polycarbonate material has a thin coating sprayed on top of the lens to ...


11

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 difference.


9

Applying heat to one side, interior, of a vehicles windscreen runs the very real risk of cracking the windscreen, because of the differances in expansion. The more usual way to remove a stuck on mirror is too use a length of wire. Introduce the wire under one corner of the mirror and pull it side to side to cut through the adhesive and any patch used. Finish ...


9

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. What is relevant is the fact the windscreen is an integral part of the structural strength of the car. If it's cracked, it's weakened, and may cause more ...


9

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 mile or so as you get out of your neighbourhood are probably the most dangerous, as you will be more likely to encounter pedestrians, cyclists, etc, who you ...


8

Typically the fog is from excessive humidity in the vehicle. The three most common sources I can think of are: A leak that allows rain water to collect in the car. Check to see if the rugs are damp, look in the storage well behind the seat and any place water might collect. Do you also notice a sweet smell when the engine gets warm? If you do it may be a ...


8

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 the heated air down in a way that causes a "rotor" of warm air in the vicinity of the windshield. This both helps to warm the windshield and gives more time for ...


8

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 the air. The liquid gets injected into the bullseye and then UV light is used to harden it. The break is still there, but the filler is completely clear. This ...


8

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 first.


7

Clean with soap and water, rinse clear, then dry with a microfiber cloth. The key is the microfiber cloth.


7

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 definite yes, it is used. One example of a production vehicle that uses plastic windows is the Porsche 911 GT3 (991 GT3 R). Taken from wiki information about the ...


7

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 usually reduces the time to get the car ice-free by half. These can be bought in auto supply shops. There are also blankets that go over all windows. Edit: ...


7

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 will prevent the warm/most/inside air from you from getting to the windshield and condensing/freezing. Even if you don't have A/C, you can try with just cold/...


6

The windshield repair guy is correct: there is no way to repair cracks in the windshield. I don't know what the laws are in Alberta, but here in Virginia, if the cracks are on the driver's side of the windshield, it needs to be replaced. Considering that you were replacing the wiper motor and it is on the DS of the vehicle, I will assume this is your case. I ...


6

You don't have the air inlet selection lever set to recirculate, do you?


6

It will depend on your car, the outdoors humidity, the air temperature and the engine temperature. As an example, for me on a cold icy morning starting with a cold engine: aircon on fan on low use external air, not recirculator! front windscreen demister (covers wiper rest area) rev engine until at working temp then put fan on high But in high humidity ...


6

Windshield repairs are usually limited to small chips and small cracks. Several cracks that long will most likely require that the windshield be replaced. The repair is done by injecting a resin into the flaw then polishing the surface. Most shops limit the length to about three inches. There are specialized shops that say the limit is six to eight inches, ...


6

While I think the other two answers are good, I think there is a better explanation of what is happening with the windshield when a rock hits it. When a rock hits a windshield and puts a "bullseye" into the surface, it creates areas within it called stress risers. Stress risers cause places in any structure where the stress is localized to a small area. ...


6

Here's a parts explosion The hose #9 you could drain through. I like the coolant idea. pour coolant in the reservoir, it might take a bit but it will turn the slush into liquid. There a glycerin in it and it's alcohol based so it's miscible with any alcohol in your wiper fluid. Nothing bad will happen. Others chime in if this is ridiculous to you for ...


6

it scratches too easily. thus, it cannot be used in a road environment


6

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 glass. When I say minor, I mean the really minor stuff. This will help it look more optically clear. The second thing it will do is cause a whetting effect with ...


6

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 the pads and rotors. Daily carwashes will fade your paint real quick. If you do not want to brave the elements, get your car warmed up and use the defrost ...


5

The pump is usually mounted to the bottom of the tank. Common causes of failure: Disconnected or clogged hose with the engine off can you hear the motor running under the hood? If so could be a clogged or disconnected hose. Wax or other debris in the jets, if the jets are located on the hood they can get clogged with wax or dirt, if you hear the pump ...


5

That depends very much on the sticker material. For vinyl stickers I've had good experience warming them up with a hairdryer to soften the glue and then slowly peeling them off. I've also managed to get them off a windshield using a scraper (essentially a razor blade with a handle similar to this). You have to be a bit careful with the latter but I managed ...


5

There won't be a fault with the windscreen. If it was drawing excessive current, then the fuse for this circuit would blow. There could possibly be a fault with you alternator, in that it is not able to provide the current being drawn by the windscreen, this will then cause the battery to discharge. Another possibility is that the idle speed control valve ...


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