I work at a automotive glass factory. Fun fact this often goes through 3 heating phases depending on how much print is on it. The black dots are called a Dot matrix, and we have a standard for how many can be missing in a 5 inch area. It's printed on first, goes through a casso, which is essentially a long hot kiln, and then many modern backlights have a secondary printing done on top, after the first trip through a casso. This time it's in silver, which is how you get the heated backshields, which also have their own standards, IE cannot have any broken lines, it is both a safety hazard and will make a defective product. After the silver it goes through the furnace is which is between 1500°-3000° depending on what glass you're running due to things like thickness. After it comes out of the furnace it glows cherry red and goes through the press that molds it into the rounded shape and then through an immediate cooling process which is how it is tempered so that instead of the big stabby I'll kill you pieces you get the Itty bitty little pieces that shatter more cleanly without causing major injuries. We also have to map and track the spider patterns to make sure it shatters properly and turn it in every 3 hours. Overall an average line has 4 printers, 2 furnace specialists between 3-6 packers and 1-2 truckers and sometimes more depending on what we are running IE the part type and how fast we can run it. It also goes through AA but I don't know shit about that part of the process
@patrickjohnerana4303 that's more of a different departments expertise but from what I remember learning is it's because of the way the paint works on the individual glass. Cars have 2 types of glass (normally) what we call Galaxsee (black) and EZ-Kool. (Greenish blue). We have to make the paints completely different for both glass Colors to get them to adhere and work properly.
No can do... I have been working with wiper system design in the automotive industry for close to 3 decades. Most vehicles have a tandem wiper system (both driver- and passengerside wiper arm&blades are parked, pointing in the same direction and moving in the same direction). The little shark fin is the result of the distance between the outer tip of the driver side wiper blade and the inner tip of the passenger side blade. The blades need some distance (or clearance) between each other in order not to collide during operation. Also, the thing about the dots is not fully correct. There are windshields without them. Yes, they do even out the temperature in the glass, but more importantly, they make the transition between clear glass and the black band look nicer. It's hard to make an even fading that gradually becomes clear since the black band is printed to the glass. The dot's gives more or less the same function, but are much easier to make.
The windshield professionals tell this: They serve as a contact point between the glass and car frame. They create “etches” on the surface, making them rougher so the adhesive can stick better to the glass. They help preserve the urethane sealant used to bond the glass to the frame. They use the black enamel outside the windshield to block the sun’s ultraviolet rays from melting the adhesive underneath the band. This keeps the windows firmly glued in their place. The black dots, or “dot matrix” actually help distribute temperature evenly to lessen optical distortion or “lensing”. This happens when the frit band (the solid black one) heats up much faster than the windscreen’s glass, creating an optical distortion that makes either straight lines look curved or bowed inwards toward the centre. Those “gradually sinking” black dots help lessen this phenomenon by dissipating the heat and spreading it out evenly. Frits are also there for aesthetic purposes. If you look closely, the contrast between the dark band and the transparent glass can look too obvious even when viewed from afar. Creating a halftone pattern or “dot-matrix” allows a gradual decrease in size, making the transition much more subtle and easier on the eyes. Frits are slowly evolving over the years and modern cars now add “third visor frits” right behind the rear-view mirror to block the sun between two sun visors.
I never get tired of learning just how much science and pure ingenuity has gone into the everyday things we use. Yet, so few people actually realize what they take for granted.
As someone who works in the car/truck industry, I love frotting frits onto windows, it's honestly my favorite part of working on cars. Every time I frot I whisper "It's frotting time" and I start frotting the frit onto the windshield.
I remember when I used to sit and wonder what the black dots were. I would always see them crawling all over my walls. You did a really good job explaining them so I don’t think I have to worry anymore
I can confirm. Also, It's an Enamel that is cured when the windshield is tempered in the oven so if it's done properly, you can't scratch it because it turns like glass. If you can scratch them, is because the serigraphy was put after the tempering (cheaper because if the windshield brakes in the oven you lost the enamel + labour). Source: I worked in a glass (mainly windshields for almost any vehicle) factory in all departments.
I went to the Enstrom Helicopter factory in Menomonee Michigan. They had a bunch of flame throwers heating up a pit. They had a cage/framework that had short strings hanging down at certain points. On the side of the pit was a stack of plexiglass sheets about 5 feet high. They could lay a sheet on top of the pit and let the heat soften the plastic. At a key point, the operator would whistle out to the shop and about ten guys would drop what they were doing and lift the cage over the plexiglass. Air would be blown into the pit and the plastic would rise towards the strings (they served as gauges). When the plastic touched the strings, heat was reduced and cooling air was blown in, freezing the plexiglass into the bubble windshield for the helicopter. A large number would bubble out in one spot and immediately be rejected. Others would later be rejected by Quality Control because of optical distortion. They had something like a 90% rejection rate...hence the big pile of sheets.
This demonstrates the beautiful small details that go into the engineering process. So much goes under appreciated, yet almost everything is the way it is for a purpose.
dude is half way to six million , all he does is research fun facts and takes up an entire short to say one fun fact , and they are not even useful either
@@JupiterKnightberry b benson. Blocks Funny Doings International. Chips ahoy. Cheetos. Chikn nuggit. Fantoccio. Crescendo of the Blood Moon. Rec Room. Club Penguin. ToonTown Rewritten. Isle of Lost Skulls.
If your window has a crack in it it's bound to happen eventually. Especially if you turn on the defroster or AC. The temperature difference causes the glass to warp and expands the crack.
I'm 32 now and an older gentleman In his 70s told me when I was 16 that those black lines in the rear windshield was the Antenna integrated into the glass. My dumbass believed him and no one can tell me otherwise 😅
Did you know there’s also a plastic film covering your windshield, so that in the event that your windshield cracks, it won’t shower you with tiny shards of glass, but instead just crack at where the impact was made.
This guy is making the RUclips community smarter everyday. Thank you for the grid Zack
True!
I Know Right!
Fr
What are you learning from this exactly?
He sometimes mess up
Man just answered my biggest childhood question
FR
Exactly. I needed this 😅😂
Yep, little me always wanted to know why there were dots
I've waiting 20 years for this info
FRR
Can’t wait for my kid to ask me this question now so I can keep up the “My Dad knows everything” charade a little bit longer.
LOL 😂
That's really sweet though
i asked mine he said it was the defogger
@@TheMostSwaggiest then its not correct
@@alx_8563 yeah ik
I always imagined them as a little crowd of people when I was a kid
SAME!!
ILL NEVER UNSEE IT
OMG ME TOO
SAMEEEE
Me too!!! But my crowd was always at a basketball game? Idk why. I don’t even like basketball 😭😂
mans answering questions i didnt even know i had
Lol same
Lol right
Indeed I thought those were just some decorative patterns
Same
Lol true 😂
Wondered this my entire life. Thank you
Really? You wondered this your entire life? I doubt that...
@@Anotherandomuser0brotha let bro think in peace
You spent your entire life wondering this? 💀
@@YourGodNigga99why you acting like that’s so surprising
@@YourGodNigga99he's the thinker man
When I was small I used to think they where little poeple
WHAT😭
😂 elite imagination
SAME
same
I work at a automotive glass factory. Fun fact this often goes through 3 heating phases depending on how much print is on it. The black dots are called a Dot matrix, and we have a standard for how many can be missing in a 5 inch area. It's printed on first, goes through a casso, which is essentially a long hot kiln, and then many modern backlights have a secondary printing done on top, after the first trip through a casso. This time it's in silver, which is how you get the heated backshields, which also have their own standards, IE cannot have any broken lines, it is both a safety hazard and will make a defective product. After the silver it goes through the furnace is which is between 1500°-3000° depending on what glass you're running due to things like thickness. After it comes out of the furnace it glows cherry red and goes through the press that molds it into the rounded shape and then through an immediate cooling process which is how it is tempered so that instead of the big stabby I'll kill you pieces you get the Itty bitty little pieces that shatter more cleanly without causing major injuries. We also have to map and track the spider patterns to make sure it shatters properly and turn it in every 3 hours. Overall an average line has 4 printers, 2 furnace specialists between 3-6 packers and 1-2 truckers and sometimes more depending on what we are running IE the part type and how fast we can run it. It also goes through AA but I don't know shit about that part of the process
Ok then...make me a windshield for my 1968 Corolla. They don't exist anymore. Please and thank you. Next week?
curious why they dont just make the frit white so it doesnt heat up as fast
Thanks for such an in depth explanation of this stuff :D
@patrickjohnerana4303 that's more of a different departments expertise but from what I remember learning is it's because of the way the paint works on the individual glass. Cars have 2 types of glass (normally) what we call Galaxsee (black) and EZ-Kool. (Greenish blue). We have to make the paints completely different for both glass Colors to get them to adhere and work properly.
i aint reading all that
He's the type of guy that makes shower thoughts but actually answers them
UNDERRATED COMMENT. ABSOLUTELY 👍🏾
@@shamachelon comment: 1 sec ago
People: UNDERRATED TOO UNDERRATED
999 likes, lemme fix that
@@StarMoonBlox that seems to be what it looks like, yes. 😂
Sounds about right!
As a black man, I can cofirm that I heat up fast.
💀💀💀💀
Black color absorbs more sunlight or something
Shut up
Go away😭😵
Brilliant 😁🤣
I always thought it was a design choice, Zack teaches me something new everyday.
I can't get enough of your content.
Now they just need to do something about the shark fin shaped area of the windshield that doesn't get touched by the wiper blades.
Bugs TF out of me
No can do...
I have been working with wiper system design in the automotive industry for close to 3 decades.
Most vehicles have a tandem wiper system (both driver- and passengerside wiper arm&blades are parked, pointing in the same direction and moving in the same direction).
The little shark fin is the result of the distance between the outer tip of the driver side wiper blade and the inner tip of the passenger side blade.
The blades need some distance (or clearance) between each other in order not to collide during operation.
Also, the thing about the dots is not fully correct.
There are windshields without them.
Yes, they do even out the temperature in the glass, but more importantly, they make the transition between clear glass and the black band look nicer.
It's hard to make an even fading that gradually becomes clear since the black band is printed to the glass. The dot's gives more or less the same function, but are much easier to make.
ANNOYING AF
Don’t tell me you were today years old when you found that out
Bro I used to stare at that sm
My 8 yr old self: scratching the shit out of it with my nail to remove those dots….
Me too I don’t realize how I almost killed my self 💀
Edit: I don’t wanna be that person but this is the most likes of a comment I ever made
@@Doubled_lychee_twins Same man💀
Noooooooooooooooo don’t make me think of that, it gives me the shivers every time, it’s like scratching a chalkboard
@@Jaybro8you might have ocd like me!
Can't it just be white or smth
Bro took "That's a little racist" to a whole new level💀
How
@@charlescalvin262
Did you get fired from the military 💀
My guys falling on hard times 💀
@@what_4836s No, I just don’t understand the joke
@@charlescalvin262
Talking about your profile, got hit with that early 2010s nostalgia
@@charlescalvin262Same here lol
I always imagined those little dots as people holding hands with each other and a v shape showing Unity between people
The windshield professionals tell this:
They serve as a contact point between the glass and car frame. They create “etches” on the surface, making them rougher so the adhesive can stick better to the glass.
They help preserve the urethane sealant used to bond the glass to the frame. They use the black enamel outside the windshield to block the sun’s ultraviolet rays from melting the adhesive underneath the band. This keeps the windows firmly glued in their place.
The black dots, or “dot matrix” actually help distribute temperature evenly to lessen optical distortion or “lensing”. This happens when the frit band (the solid black one) heats up much faster than the windscreen’s glass, creating an optical distortion that makes either straight lines look curved or bowed inwards toward the centre. Those “gradually sinking” black dots help lessen this phenomenon by dissipating the heat and spreading it out evenly.
Frits are also there for aesthetic purposes. If you look closely, the contrast between the dark band and the transparent glass can look too obvious even when viewed from afar. Creating a halftone pattern or “dot-matrix” allows a gradual decrease in size, making the transition much more subtle and easier on the eyes.
Frits are slowly evolving over the years and modern cars now add “third visor frits” right behind the rear-view mirror to block the sun between two sun visors.
🤓
too long didnt read
Sir, this is a Wendy’s
Dw guys, the people in the replies don’t know how to read ignore them
I aint reading allat
This man answers questions i didn’t even know i had
😂😂
youno...
I actually learned something on RUclips today about something I was always curious about but never looked up. Thank you.
I never get tired of learning just how much science and pure ingenuity has gone into the everyday things we use. Yet, so few people actually realize what they take for granted.
It also helps police tell if your windshield is legally tinted
No. That’s the AS1 marking
@@ClittoralWombatShits no
@@matthewshields Go ahead and consult ANSI AGRSS.
@@ClittoralWombatShits I know what the as1 line is but that wasn't what I was referring to.
@@ClittoralWombatShits when someone fully tints thier windshield of of the dead giveaways is the little bubbles that form over those dots.
There’s always a trial and error. People are smart
A person is smart. People are dumb, panicky creatures, and you know it!
(This is a quote from a movie, please nobody be mad at me.)
@@thegreatandterrible4508first MIB, goated movie
@@thegreatandterrible4508men in black
@@thegreatandterrible4508is that from the spongebob movie
@@addd529 Men in Black
Real shit, whoever came up with that idea is a genius!!
Imagine how smart kids can be these days watching your channel. Excellent work you are doing for us Zack 🙏🌸♥️
It's a never ending rollercoaster full of people with their hands up
Same 🎪 different 🤡🤡🤡
Yes
Lmfao
@@nekkoskrilla6750this is cringiest thing ive seen all week.
NOOOO NOW I CANT UNSEE IT😭😭😭😭
this man answers all of life’s questions
Thank you zack for not traumatising us for once
man gives answers to the questions that go through our heads in the nights
As someone who works in the car/truck industry, I love frotting frits onto windows, it's honestly my favorite part of working on cars. Every time I frot I whisper "It's frotting time" and I start frotting the frit onto the windshield.
When the car detailer said, it's frotting time and fritted all over the place, it was one of the frittest moments of all time
I know you don't hear this very often. But I appreciate what you do the car industry
this is the best thing i’ve ever heard
Highly underrated comment
No way you actually work on cars 😂❤
I love how you just get straight to the point, no "the answer might surprise you" or anything like that 💜
This
That guys voice is fking annoying
Bro knows all of my questions about life 😂😂😂
I always figured it acted as a sun visor
So they looked useless but they actually saved you life
Saved the glue on the windshield, not your life
@@CBrasil1966did you even watch the whole vid lol
@@CBrasil1966your windshield and your life bro 😂
He’s answering our shower thoughts
I remember when I used to sit and wonder what the black dots were. I would always see them crawling all over my walls. You did a really good job explaining them so I don’t think I have to worry anymore
I’ve actually always questioned this one so thank you Zack for this answered question 😂
Finally something I genuinely wondered
244 lokes and no comments? I'm nit fixing that.
@@Thisguy0187 lokes
@@wrightsolution U know what they meant
Now I have more respect for my polka-dotted windshield.
someone dies
this guy respect
👆🚫
I always imagined those as people sitting in a movie theater idk why 🤷♀️
never thought more of it than a design choice. Now the coded labels on different gradients make much more sense.
As a child I used to think those dots were people going up a rollercoaster 🎢😂
Omg we have the same mind
It took ages for someone else to say the same thing as me
creative!
car's exhaust was leaking in cabin for sure
No for me they were snowmen that were crooked
‘If you look closely’
Literally impossible to miss
Exactly
The difference difference between sin is a groundless and it can only cause it in your life is a groundless groundless of
When I was a kid I always thought they were lil people just watching u drive and being supportive
Modern engineering is literally magic how cool is it we know things like this
The glue is called Urethane, for those interested. I’ve worked in the automotive assembly industry for 18 years
awesome man! do you know of anything else that glue is commonly used for?
@@Soul-gu6ut Nothing outside of automotive assembly. We only used it to adhere the windshield and rear glass to the car.
@@Soul-gu6ut The wheels of a skateboard are usually made of urethrane too
And that stuff is crazy expensive
man i never thought about it but it makes total sense... damn, engineers really be doin gods work
Have you ever wond-
NOPE…but now I am!
That's actually an insight!
I can confirm. Also, It's an Enamel that is cured when the windshield is tempered in the oven so if it's done properly, you can't scratch it because it turns like glass.
If you can scratch them, is because the serigraphy was put after the tempering (cheaper because if the windshield brakes in the oven you lost the enamel + labour).
Source: I worked in a glass (mainly windshields for almost any vehicle) factory in all departments.
I always wondered how those dots and label never scratch off when I remove the registration/inspection stickers with a blade.
I went to the Enstrom Helicopter factory in Menomonee Michigan. They had a bunch of flame throwers heating up a pit. They had a cage/framework that had short strings hanging down at certain points. On the side of the pit was a stack of plexiglass sheets about 5 feet high. They could lay a sheet on top of the pit and let the heat soften the plastic. At a key point, the operator would whistle out to the shop and about ten guys would drop what they were doing and lift the cage over the plexiglass. Air would be blown into the pit and the plastic would rise towards the strings (they served as gauges). When the plastic touched the strings, heat was reduced and cooling air was blown in, freezing the plexiglass into the bubble windshield for the helicopter. A large number would bubble out in one spot and immediately be rejected. Others would later be rejected by Quality Control because of optical distortion. They had something like a 90% rejection rate...hence the big pile of sheets.
@@obsoleteprofessor2034 that's called an oven. I worked in a similar place
It also help to hide or disguise gap issues with the dashboard or other trims below the windscreen. Improves perceived quality of the vehicle.
Finally a short thay actually poses a question and answers it without making me need to find the source video
This demonstrates the beautiful small details that go into the engineering process. So much goes under appreciated, yet almost everything is the way it is for a purpose.
Nothing significant actually occurs without them.
Have you ever wondered what those little black dots are?
Well yes, and now I know
as a kid i always though they were made by disney for children in the back row bc they looked like mickey mouse heads 💀
why it's black and not white then?
@@kirillberezin8859 probably for aesthetic
@@kirillberezin8859black attracts heat
Zackdfilmz be explaining the questions we never ask but need answers to
Man answering my childhood questions:😂
"Have you ever wondered why your windshield has those black dots?"
*"no"*
I learn more from this guy than my school😭
I always looked at this as passengers on a roller coaster I never focus on the reality
This is the equivalent to the meaning of life. Thank you!
Man's answering all questions we ever had
Fr
Love you man... U just teach me more than my teachers in school and in a fun way too
What more would a curious teen ask 😝
Focus on something actually important
Damn. That made logical sense i didnt even think of lmao thought it was a common design for windshields
finally something i have actually wondered about
Bro this guy deserves more subscribers.
You deserve chut
dude is half way to six million , all he does is research fun facts and takes up an entire short to say one fun fact , and they are not even useful either
@@JupiterKnight Taco Bell Burrito
@@Dra_gon54 goofy
@@JupiterKnightberry b benson.
Blocks Funny Doings International.
Chips ahoy.
Cheetos.
Chikn nuggit.
Fantoccio.
Crescendo of the Blood Moon.
Rec Room.
Club Penguin.
ToonTown Rewritten.
Isle of Lost Skulls.
"have you ever wondered what those black dots on your windshield are"
Me: "I don't have a car tho"
Same haha
Bro is spitting facts 🔥🔥🔥
I always thought that they where little people who would watch me, like a Beyoncé concert
Omg can somebody give this man a nobel prize
I always wondered what that was as a kid. Thank you zack for answering the most random questions
This guy could make Elmer's glue sound interesting
The plastic thing at the end of a shoelace is called an aglet
That explains why my windshield shattered out of nowhere driving around in a parking lot the heat probably did it, I was a bit confused that day.
If your window has a crack in it it's bound to happen eventually. Especially if you turn on the defroster or AC. The temperature difference causes the glass to warp and expands the crack.
@@richardmoore609 I had no crack in my window it just randomly shattered one day
You never know how complicated things are unless you really know how they work.
I’ve learned more about life with this channel than all of my school years!
Bro is slowly, but surely curing this generation
When you have a fever: PUTS DOT ON MY SKIN
Gradually change of heat through dots is actually a genius move
I always thought those people were at a concert watching me stare at them and having a ball
I always think they look like a crowd of people getting smaller as they get further away, and the dots are their heads!
It also helps it to look better and make it fade from black to clear better
I'm 32 now and an older gentleman In his 70s told me when I was 16 that those black lines in the rear windshield was the Antenna integrated into the glass. My dumbass believed him and no one can tell me otherwise 😅
Some vehicles do have an antenna in those lines. Not all of them do though.
I got told this too! 😹😹
It's hand heater when the engine breaks and you need to push.
Also the heating element and other sensors depending on the make and model.
Some do have antennas in the glass. My 79 Chevy and my 08 Subaru both have antennas in the windshield
Most useful YT shorts of the year
That is so curious! Thank you for sharing this. ✨
Bro I always questioned myself of what’s the purpose on the black dots for
This is the content we need
Every kid and adults need this man's explanation❤
It's so the heat doesn't shatter the windshield. Saved you watching the whole thing
The whole thing is only like 40 seconds. You saved people maybe 10 seconds
@@McLoviniam you're welcome
@@avacadotoast4298answering the comment + watching the video you just added time onto, give me my fkin life time back you just stole
I've been wondering about this for over 20 yrs. I've seen it on bus windows and always wondered why they do that.
I’ve never wondered but it’s cool knowing a fact no one will ask me about ever!😃
We were unaware of that fact.
Officially this is the most valuable RUclips shorts channel
Never thought the reason will be so deep n importance 💀
everything we thought are odd is probably important
This is amazing,it's like everything we never thought of or bothered about are so helpful
Can confirm.I replace windscreens every day 😂
Bros answering the question that I think of in the shower and the ones that keep me up at night
Something so simple but so complex. Man’s a genius who made this
bro is answering all the questions i had as a 6 year old
No AI voice? Well edited? I actually learned something??? You're a dying breed mate
This guy knows everything
Its for children to play with when bored while you chat with a neighbor for hours inside the store.
Did you know there’s also a plastic film covering your windshield, so that in the event that your windshield cracks, it won’t shower you with tiny shards of glass, but instead just crack at where the impact was made.