Nissan Motor Co. said it has developed a new type of paint that significantly reduces the temperature inside vehicles parked in direct sunlight.
The surface of a car coated with the innovative material remains up to 12 degrees cooler than that of a vehicle with standard paint, tests showed.
The company said the coating material can help rein in the temperature rise not only on the car’s body but also in the vehicle when exposed to direct sunlight.
Anything to not add a cooling system to the ev batteries.
12 degree °C or °F???
Considering it’s no an American brand I’d say Celsius
°C, which is not bad. Official press release (I think): https://global.nissannews.com/en/releases/nissan-trialing-cool-paint-technology
can i paint my house with that?
Nanoparticle roof shingles are a thing and they really work well
There’s already a 98% paint, not that cheap last I checked though.
Also great for city climate since heated up cars are acting like a heat battery making it significantly slower for a city to cool down once the sun goes away
Ideally there would be no openly parked cars but I guess this is the next best thing
How big is the difference between black and silver, metallic and non-metallic paint?
It’s surprisingly low. A German institute conducted a few experiments and the most extreme discrepancy was 1.5 degrees Celsius or something.
That typo reverses the meaning by being one letter off.
Lol
Yeah, I know it’s an NSX. Deal with it.
What is the relevance here?
If you ever had balls, you’d know
cringe
JDM internet tough guy shit 🤣
Again, what does a somewhat overrated 90s Honda have to do with Nissan’s paint options? And what’s with the tacky body kit?
Especially since it was largely a failure in the racing series it competed which at the time was dominated for years by Nissan.
Weird
Why don’t they just make the whole
planeplanet out of theblack boxpaint.Windshield screens are the low-tech but far more effective method of keeping a car’s interior cooler, typically by at least 20F when it’s really hot out. Slightly inconvenient but unlike this paint, a windshield screen will actually make a difference.
I don’t care about your cage’s interior temperature. Until we can ban cars from cities I’d welcome such paint, because all those shit heaps of cages standing on public space still end up heating up the places around them, further inconveniencing everyone else even more.
Do they? I mean yes, because the ICE engines just constantly dump a ton of heat out, but does a parked car? Is there data on that?
Yes, just like “rock / gravel gardens” or whatever you call them in English, which are now banned in a lot of places for one reason being that exact same phenomenon of contributing to the urban heat island effect. They soak up the heat from the sun like a battery and then slowly release it into their environment, keeping it warm. It’s super obvious as a pedestrian.
You realize the emissions saved from reduced AC usage would also reduce the heat island effect, right? Sun visors like this are good for public spaces.
Also, it’s more environmentally friendly to have people use visors than repaint their whole car.
That still does not make me care about your cars interior temperature.
That’s okay, you seem pretty simpleminded so I don’t exactly expect you to understand the issue. I understand the anti-car sentiment but you’ve clearly gone off the deep end yet you still seem to think it matters to other people whether you care about issues like this.
That’s okay, you seem pretty simpleminded so I don’t exactly expect you to understand the issue.
Projecting much? Love the insults btw. Really drives your point forward.
I understand the anti-car sentiment but you’ve clearly gone off the deep end yet you still seem to think it matters to other people whether you care about issues like this.
You seem to care a lot. It’s also again projection and highly ironic since you were the one who apparently thought people care about your car’s interior temperature.
You seem to care a lot.
I think you’re confusing my care for the issue as me caring for you. It’s too bad you can’t even be bothered to make some of your comment relevant to the discussion.
Mythbusters did an experiment with a black car and a white car hitting in the sun. The black car was 12 degrees Celsius hotter. Claiming that the paint makes no difference is such a weird take. I thought this was common knowledge as well as many people I’ve met avoid darker colours in summer and such.
Summer was hard on me in my teenage goth years.
Can’t really get many light shades of black.
I think i’m in love.
What’s the cost (financial and environmental) of repainting a car vs using a windshield visor that’s at least twice as effective at reducing heat? Painting a car with this stuff would cost thousands of dollars compare to $20 for a visor.
I’m not talking about repainting anything, why are you moving the goalposts? Just buy a white car AND use a visor, what’s wrong with that? And in the future, if this stuff is actually good, maybe all cars can come already painted with it?
Speaking of huge and inconvenient, if you’re a cheapskate, just get a car cover. Always helped my motorcycle.
I bet the interior of your motorcycle was WAY cooler after that.
It was! Also, the exterior wasn’t too bad, either
Wanna know how you’re right? Look at the FLIR photo above and note where the heat is at its highest
I seriously doubt that, tests have been performed comparing black and white painted cars, and the difference was insignificant. The heat buildup in a car is due to the the sunlight entering through the windows.
Could you link one of these? All the ones that I can find say there’s quite a bit of a difference
This is the t-shirt one I remember.
From
https://mainichi.jp/english/articles/20230726/p2a/00m/0sc/014000c
OK I’ll link the danish test, this test is done with 2 cars that are identical, except for the color of the paint:
Konklusionen er altså, at den sorte bil ikke varmes mærkbart mere op end den hvide.
Translation:
The conclusion is that the black car does not heat up noticeably more in the sun than the white.So it does a little bit that you can measure, but not enough to really make a difference.
Det skyldes ifølge Christian Bahl, seniorforsker hos DTU Energi, at bilerne opvarmes gennem ruderne.
According to Christian Bahl senior researcher at DTU energy, that is because the cars are heated through the windows.
(DTU is a well recognized institution for scientific research in Denmark.)Maybe the fact that the experiment was done when outside were only 20-22 degrees made the difference less noticeable? Otherwise I can’t explain why all the other tests I’ve found said the difference was 5-10+ degrees.
Sorry can’t find it, all I can find in english are some where the data isn’t clear.
If a white car has brighter interior it will stay slightly cooler, I cannot find a test where everything is the same except the color of the car.
What I can say however, is that the test I saw was performed in Denmark. It’s possible countries with hotter climates may observe some difference?Obviously the main source of heat is what enters through the windows, and how much is reflected out again does have an influence.,
If a white car has white seats and interior, they will obviously not heat as much as black seats and interior.
The white color on the exterior will also reflect more light into the car, except maybe at noon.
Edit PS:
I linked the danish test in a new response.Obviously the main source of heat is what enters through the windows, and how much is reflected out again does have an influence.,
A lot of things seem obvious but turn out not to be, or not as much as I’ve first thought. Hence the usefulness of data and studies rather than mere reasoning.
They should install automated blinds like some high end luxury cars have except make them out of that silvery windscreen sunshade stuff.
To add to your comment, ceramic window tint is a night and day difference. My steering wheel, shifter, and all couldn’t be touched after work. I wore driving gloves to get home. With the tint there slightly warm and the AC doesn’t take half the drive to catch up, the car is cool by the first stop light.
Maybe they should sell cars with that by default instead?
Is ceramic tint different from ordinary tint?
Yes. It contains ceramic nano particles that reflect UV without interfering with visibility.
They should install automated blinds like some high end luxury cars have except make them out of that silvery windscreen sunshade stuff instead of developing this paint…
trick is to paint the windows
Also this is problematic:
12 degrees cooler
But by what scale? If it’s Flaffenfeit, it’s just half an ounce!!!
And an ounce is nowhere close to a decimeter!
I bet Kelvin couldn’t agree more. But to be fair, he started a bit on the negative side. And called everything above that plus.
A bushel of paint should be enough to cover 12 roods.
Our European friends are going to need you to convert that to kilometers.
Dammit, I needed 5.5 qt paint to cover one parking spot
wouldn’t this also work on buildings? pavement?
great video. Its wild that it is functioning as an IR emitter and just beaming things into space.
No, only Nissans. It says right there.
Probably yes, but it may not actually be doable. Not just because of how much there is to paint, but because the energy doesn’t just evaporate. It’s got to go somewhere. In this case I’m assuming it’s reflected, even if diffused. If everything does this, things that don’t (people, cars, pets, etc) will get all that extra energy.
Wouldn’t want to end up in a situation like this: https://www.businessinsider.com/death-ray-skyscraper-is-wreaking-havoc-on-london-for-a-few-totally-insane-reasons-2015-7
It can reflect it out to space. It is possible to make paint the keeps things below ambient. Obviously you’re correct, but only for things not facing upward. Upward facing things will bounce the energy back away from Earth.
Oh great so now the rest of the universe has to deal with it. Really just kicking the can aren’t we
The amount of folks who have melted their shitty low quality thermoplastic patio furniture with their sliding glass windows will always amuse me, but overall I don’t consider IR radiation to be a big problem. Using a bunch of VOCs to paint everything and pollute a city would be though.
You ever seen that curved building that focused the sunlight into a spot in front of it and melted cars? Lol
You mean the one in the comment that the comment you replied to mentioned and linked to?
Ok, so don’t paint it on any concave surfaces. Most buildings have flat or convex surfaces.
Is metal paint and concrete paint the same thing? I’m not a painter
Metal paint is concrete paint. Microsoft paint is abstract paint. This comment is metaphorical paint.
Ultimately, they can be, but there’s lots of differences between them once they reach the bucket you buy. They have different adhesion qualities, but that could be addressed with an appropriate primer. They have different final finish surface requirements, which could be an issue for how the paint works. I remember seeing dragonfly-wing-style paint that was white when viewed perfectly straight buy blue when viewed at any off angle due to a microscopic vertical grid of blue walls. There may also be a required clearcoat component that may not be compatible between the two surfaces. Metal paint is also designed to handle the flex of metal where as concrete paint would barely be concerned about that but possible address crumbling instead.
Edit: and after reading the article, it’s a radiative-cooling paint rather than a reflecting coating. Concrete has a much lower thermal conductivity so this may not be effective in transferring heat out of the concrete.
12 degrees? I guess that’s cool but still well within egg frying temperature around here.
Forget Nissan but I’ll take the paint.
Yeah but 350Z tho
Yeah but fuck Nissan
Agreed, but mostly fuck modern Nissan. 90s and 2000s Nissan were cool.
There’s a very long list of two door sports cars I’d buy instead of one of those bloated excuses.
I’d like to see that list, cause I’m I’m considering selling the car in a year or two. Requirements: 2 doors, convertable, 300+ BHP, manual transmission, stability control (cause I’m a bad driver lol), under $15K.
Miata, BRZ, GT86, possibly a WRX if you want something more practical.
I mean, if you’re a middle age bro with a retail supervisor job compensating to show off to teen girls, I guess.
I see, thanks for pointing out that I’m a stereotype. FML
TBF, the 350Z was the sports car to have when I was a teenager. Not my fault that I can only afford one just now in my mid-30s, haha. I blame Ronald Regan for screwing over working-class citizens. If I had the money my parents had, I’d be driving an EV by now.
I had a 370Z. Basically the same chassis with a bigger engine.
Feels like sitting in a bathtub. It’s got a heavy ass flywheel that makes the V6 feel as smooth as a V8, but with predictable effects on responsiveness. You can cut the fly weight in half and it’s still perfectly good to run on the street without issues.
I traded it in for an Miata NC and never looked back. Sure, the Z has more power, but it doesn’t make good use of it the way a Miata does.
Funny you mention that; I had the opportunity to buy an ND Miata for $5K more. Went with the 350Z instead. Now your comment is making me second guess myself, even though I love how the 350 handles.
It glides through corners so damn well, I can’t possibly imagine it getting any better than this, but you “Miata is always the answer” people always come of the woodwork and make me second guess my decision. The low horsepower figures always got to me. But now I’m thinking that maybe I should have just taken the damn test drive before falling in love with the Z.
Might be the most interesting thing Nissan has developed in two decades.
They found a very interesting way of selling their hybrid cars as full on EVs where I live. Their e-power stuff are small ICEs working as generators for electric motors that then drive the wheels. Apparently the fact that the wheels get all their power from an electric motor makes it definitely not a hybrid no sir, despite the fact the cars have tiny ass batteries and the single source of power for the whole system is the ICE. Also they somehow have worse fuel efficiency than many contemporary ICEs that cost quite a bit less. I don’t understand Nissan.
Where is this?
A few car companies seem to be doing that. Toyota(?) here are advertising their hybrid vehicles as “self-charging electric vehicles” instead of a hybrid, even though there’s no way to plug them in and not have them self charge.
Nissan invents white paint
If it’s like this stuff then it’s more than just white paint.
If it’s like that stuff then they didn’t invent it.
Well, they would have invented the specific formulation they’re using. I’m sure it’s not exactly like this but I wouldn’t be surprised if it’s the same concept with microbeads.
No one invents anything totally new. It’s all adding on to what others have made in the past. Nothing has ever been created from scratch.
I was hoping I’d see nighthawkinlight in the wild here.
Only reason I’m here lol
