Do you know how easy it is to break the car windows using spark plug pieces? Or do you know how that works and why it happens?
You may know the first one, but surely, you don’t know clearly how that works and why it happens.
That’s why I have prepared a great arrangement of information about how and why do spark plug pieces break car windows so easily so that you can clear out all the confusion and questions about spark plugs.
Most people are having a car know about spark plug pieces, but breaking car windows with that always remains unclear even though you see lots of information on this.
It is not that hard to understand, but what you need is a guide that can simplify the concept. And here I am to do that! So let’s get started!
FAQs – Frequently asked questions
How do you burglar-proof a car window?
Answer: You can strengthen the window of your car by using window tints. And that is the best way possible. There are several reasons for which you want to make your car window strong enough not to break.
That is why you have to install security window films so that your car can be prevented from thieves and other attacks.
The car window seems more sturdy and durable because of this installation of security films. And it is protected from outside attacks since breaking the car window will require so much work.
How do you break a car window without making a noise?
Answer: There are some ways found to be useful in this matter. So to break a car window without making any noise, you may use some sort of staff such as duct tape, blankets, etc., as tools.
Here are some tips that should be followed. First of all, you should start by using duct tape to completely cover the window from one side to the other side. You must ensure that it is fully covered.
This step is essential because it allows you to gently break the window without making a sound. Then if you break the window, you will find no noise.
Can spark plugs break bulletproof glass?
Answer: The answer would be – No.
The bulletproof glass cannot be broken by using spark plug pieces. There is a report found relating to this matter. The US Federal Bureau of Investigation site states that there are forensic experts who have given their verdict on it.
They said though the car windows can be broken by the spark plug pieces, the bulletproof windshields cannot be broken by the spark plug.
4. Can you make your car windows unbreakable?
Answer: The answer is tricky because it cannot be said that the car windows can be unbreakable, though they may be made even stronger and nearly unbreakable. So, in that case, the answer is yes.
There is a study conducted recently by AAA where this matter has been expressed, and they stated that by laminating the glass of your car windows, you could make it stronger enough not to be broken!
Laminated glass requires two sheets of tempered glass, and a piece of plastic that is clear would be put between the sheets. The three mixtures will make a bond that will be stronger enough and can be unbreakable.
5. How much force does it take to break a car window with your fist?
Answer: Breaking a car window with your fist is work. But if you are strong enough, then it is easy.
To calculate the force, breaking a car window normally requires 20,000 to 24,000 pounds per square inch of force or pressure, which equates to around 60 pounds of force.
It depends! Such as, if the item is smaller, then less power would be required to break the glass.
6. What causes car windows to explode?
Answer: Few reasons accelerate the explosion or breaking of car windows, even though it is a rare case.
This happens when some significant tension can build up around chips or other flaws in the corners of a tempered glass window.
Even there are environmental factors such as temperature, wind, and road vibrations can cause such glass flaws to crack spontaneously over time.
Let’s know the concept and reason for spark plug breaking a glass
You may wonder how easily a car window can be broken! Okay, it can happen with any other tricks, but what is more common and easy is to use spark plug pieces.
Whenever you need to break into your car, you can use a bunch of other stuff that you know. But obviously, those either require hard work or a lot of time. That’s why you will be suggested to use spark plug pieces because it’s EASY!
Yes, it is easier, but to let it happen, it is also necessary to know how that works and the reason behind this happening.
Now let’s explore how and why a spark plug shatters a glass!
Why spark plug pieces break car windows
Let me tell you that you will find thousands of descriptions from a different angles of why it happens. But what everybody wants is to get a simple description in the most specific way. Let’s start from there!
I have found two reasons which accelerate the concept of breaking a car window by the spark plug. Firstly, the spark plug consists of ceramic parts. This helps to break a window. And secondly, the car window is specifically built with tempered glass.
So, the spark plug has the ceramic part which breaks the glass, though ceramic parts have a more complex building than the glass of the car window. Still, this spark plug can easily break a glass or a car window with much less force than you think.
Besides, the car windows are specially made of tempered glass. You know this fact, and you may think that how come a tempered glass can be broken with the little spark plug pieces since it is a strong component.
That is the matter to understand.
The glass of the car window is very sturdy. Yet there is some extreme energy stored in the window because of the heating cycle happening in the car.
And that’s why the glass gets more sensitive, and any kind of small damage can make the glass shatter into pieces, and the tiny spark plug also does the same.
There is an extreme force in the spark plug because it is made of hard aluminum oxide ceramic. This helps to do a little damage in a small space, and thus the whole glass gets shattered at once.
The Easiest Way to Break Car Windows?
How it works
I have stated earlier that the spark plug is made out of hard aluminum oxide ceramic. So to break a car window using a spark plug, the spark plug has to contain the ceramic part in it because that is essential to shatter the glass.
Now, since the car window is made of tempered glass, which is strong, indeed, when the spark plug touches the glass, it creates tiny damage to the glass.
And this tiny damage causes a bunch of damage to the glass, which continued to happen until the glass gets shattered entirely.
See! No hard work require or nothing at all. Just take the ceramic part of the spark plug if you want and take this in contact with the glass or throw it. It will do its work at once! That’s it.
You made it to the end! The ultimate tiny spark plug and its big work have been exposed!
Related Post:
- For more must-have guide for How to Get Something Out of a Spark Plug Hole?
- Don’t forget to check the Why does a piece of spark plug shatter glass?
- Check out the guide of How Long to Let Engine Cool Before Changing Spark Plugs?
Final Word
There are some things that we see happening, or we are the ones doing it, but we don’t know how or why it happens!
The spark plug breaking a car window is one of them. We all know what it does, but how does it do or why? That’s a matter to discuss.
That’s why I have made an article with a bunch of information about the spark plug and breaking a car window with a much simple tone to understand. Needless to say, it is all for you!

Hi, my name is Gabrielle. I have been into Automotive Industry for over 15 years. If you’re anything like me, then building, maintaining and improving your Automotive Industry/Projects is all part of the Automotive experience.
My goal with this blog is to share my experience with and help you discover new and exciting things about Automotive.