The technology behind car window tint
4:24

The technology behind car window tint

Roadshow
So many of you have emailed asking us to take a deep dive into window tint. Some of you just want the cool look dark windows all around, others of you want yourself and your kids to be safe from ultra violet light and what it does to your skin, and others I wanna keep the inside of your car beautifully preserved because you paid a lot for it, yet you want clear windows so that you can be seen in your hot ride. [MUSIC] To the casual glance, window tint looks like pretty simple stuff, a sheet of dyed plastic. And that's all it used to be. But if you visit the 3M labs, you will find today's tint film, pack a bunch of tech in a thin see through package. This film is the thickness. Literally the sheet of paper of a posted note they tell me. I'm peeling off the backing here and this stuff is like almost not there, but inside there, apparently 200 nano technology layers of materials that given the sort of polarizing effect where it does its magic. Now aside from convertibles worth owning and weekend drives worth doing, sunlight is just the enemy of cars, it has three components you wanna tackle with tint. One is UV which is ultra violet One is Visible Light and the other one is IR which Infrared. Ultraviolet typically only represent very small amount, 3% in general. So it's very negligible. That's a very important factor. It does the most damage in terms of contribution to the fading of the interior And also skin [INAUDIBLE]. You may feel pretty smuggled by yourself when you slather on that SPF 50, but 3M says a modern window tint can hit SPF 1000. And even if UV is a small percent of all stuff hitting your car, it causes the most damage to interiors. Paint those black plastic trim parts, the outside of your tyres and of course, your skin. Choosing the right radiation technology is one big factor for you when you choose a tint but let's face it, lifestyle's another. We have a group of people that are more care about their aesthetics. They want to have dark film, as dark as they can get away with. And then of course the esthetics also include people that own exotic cars and or classic cars. They want to maintain the authenticity of the look of the car. And so therefore they don't want the [INAUDIBLE] but yet they want the performance of the film. Now if you saw our recent video on getting a great tint installed, that was using a 3M film called Crystalline 70 Crystal and it's their name for technology that can block light without necessarily being dark and the 70 part means it lets in that percent of visible light. That's part of a trend in the industry to decoupled darkness of tint from effectiveness that blocking radiation Check the tech before you buy the tint. First, pick the darkness you like. Let's face it, if you don't like the way it looks everything else is off. Research the rejection rate of the shade you want across visible, infrared and ultraviolet. Ask pointedly if the film is signal friendly and won't degrade wireless signals in and out of the car. Know what degree of tint your car has in it's glass from the factory. That may be hard to research, but assume 20% if you need a rule of thumb. Add that amount to whatever film you're considering, and then check that against state laws. Which have a say in how dark you can go. So for example, in the state of Minnesota, it's net 50, what that means is that you start with the window that's at a visible light transmission And you add the window tint, the window film on top of it, the net result has to be 50% or higher visible light transmission to be legal. That Crystalline 70 we were talking about allows 70% of visible light to pass, 30% is blocked. Well, add that 30 to a car with 20 from the factory, and now you've got 50. Well within the law in New Mexico. [MUSIC] Just legally in Minnesota and breaking the law in California. By the way, factory window tend is a different animal than the film you get applied after market. And it may do nothing to block UV and IR. Just give you privacy. And finally you wanna be aware of which windows you can tint in your state. [MUSIC] Then make sure you watch our video about how to get a good tint job done once you've picked the right film.

Up Next

The Best Place to Own an Electric Car
best-states-to-own-an-ev-00-15-12-06-still129

Up Next

The Best Place to Own an Electric Car

The Full Cost Advantage of an Electric Car Is More Than Cheap Fuel
ev-total-cost-of-ownership-00-02-51-08-still112

The Full Cost Advantage of an Electric Car Is More Than Cheap Fuel

How Will We Deal With a Mountain of Old EV Batteries?
ev-battery-recycling-00-06-10-03-still099

How Will We Deal With a Mountain of Old EV Batteries?

How an EV Works
how-evs-work-00-04-48-14-still089

How an EV Works

Do You Know What It Really Costs to Drive an Electric Car?
hidden-costs-of-evs-00-11-54-12-still088

Do You Know What It Really Costs to Drive an Electric Car?

The Best Way to Charge Your EV Is at Your House
home-chargers-copy-01-00-05-49-18-still089

The Best Way to Charge Your EV Is at Your House

See a Robot Change an Electric Car's Batteries in Minutes
ample-battery-swap-00-06-02-17-still070

See a Robot Change an Electric Car's Batteries in Minutes

How to Buy an EV With Enough Range
electrified-ev-range-00-07-13-12-still091

How to Buy an EV With Enough Range

Autonomous Car Tech That Will Make History in 2022
autonomous-cars-2022-00-12-34-21-still089

Autonomous Car Tech That Will Make History in 2022

Roadshow Video Series

AutoComplete
autocomplete-w

AutoComplete

Cooley On Cars
on-cars-w

Cooley On Cars

Carfection
carfection-w

Carfection

CNET Top 5
cnet-top-5-w

CNET Top 5

The Apple Core
apple-core-w

The Apple Core

Tech Today
tech-today-w

Tech Today

Latest Cars All latest products

2022 Ford Bronco Raptor: This Big Bronco Is Here
ford-bronco-raptor-still-v1

2022 Ford Bronco Raptor: This Big Bronco Is Here

2022 Ford F-150 Raptor Goes Big With 37-Inch Tires
f-150-raptor-still

2022 Ford F-150 Raptor Goes Big With 37-Inch Tires

2022 Volvo C40 Recharge Is a Sharp-Looking Swedish EV
volvo-c40-recharge-still

2022 Volvo C40 Recharge Is a Sharp-Looking Swedish EV

EVs vs. Gas Engines: We Do the Math on Carbon Emissions
evs-exposed-still

EVs vs. Gas Engines: We Do the Math on Carbon Emissions

2022 Yamaha XSR900 Breaks Away From the Cafe, and Onto the 1980s GP Grid
yamaha-still

2022 Yamaha XSR900 Breaks Away From the Cafe, and Onto the 1980s GP Grid

2023 Nissan Z First Drive: A Hotter Performer With Newfound Tech Smarts
nissan-z-2023-first-drive-holdingstill-cms

2023 Nissan Z First Drive: A Hotter Performer With Newfound Tech Smarts

Most Popular All most popular

Microsoft Surface Laptop Go 2 Video Review
surface-go-22

Microsoft Surface Laptop Go 2 Video Review

SpyraTwo hands-on: The ultimate water gun
spyratwo-2

SpyraTwo hands-on: The ultimate water gun

What iOS 16 May Tell Us About the iPhone 14
yt-appleslice-iphone-14cnet

What iOS 16 May Tell Us About the iPhone 14

MacBook Pro M2: Apple's New Chip Put to the Test
p1099021-mov-03-56-58-06-still001

MacBook Pro M2: Apple's New Chip Put to the Test

What's New to Stream for June 2022
netpicks-june-2022thumb

What's New to Stream for June 2022

How Stationary Batteries Could Help Your Electric Car Move
chargebox-ads-etron-4165x2777

How Stationary Batteries Could Help Your Electric Car Move

Latest RoadShow News All latest news

How Stationary Batteries Could Help Your Electric Car Move
chargebox-ads-etron-4165x2777

How Stationary Batteries Could Help Your Electric Car Move

2022 Ford Bronco Raptor: This Big Bronco Is Here
ford-bronco-raptor-still-v1

2022 Ford Bronco Raptor: This Big Bronco Is Here

How Amazon Boxes Will Deliver the Future of Electric Vehicles
electric-delivery-trucks-00-06-22-07-still138

How Amazon Boxes Will Deliver the Future of Electric Vehicles

2022 Ford F-150 Raptor Goes Big With 37-Inch Tires
f-150-raptor-still

2022 Ford F-150 Raptor Goes Big With 37-Inch Tires

Monarch Electric Tractor: The Autonomous Connected Tractor That Might Change Farming
monarch-tractor-00-13-21-12-still142

Monarch Electric Tractor: The Autonomous Connected Tractor That Might Change Farming

2022 Volvo C40 Recharge Is a Sharp-Looking Swedish EV
volvo-c40-recharge-still

2022 Volvo C40 Recharge Is a Sharp-Looking Swedish EV