What we need is a paint that turns white when air temperature is high, and black when air temperature is low to reduce our heating and cooling needs.
'Whitest ever' paint reflects 98% of sunlight
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Re: 'Whitest ever' paint reflects 98% of sunlight
#82Someone needs to compile a list of all this fringe tech that I see popping up in my feeds, almost daily now. I know there are techpress blogs that pump out articles like this, but there doesn't seem to be an authoritative compendium of such tech anywhere on the net. I could curate this by hand with 3 hours of free time and some Red Bull I suppose. The reason I want this is because we seem to be swimming in innovation…
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Re: 'Whitest ever' paint reflects 98% of sunlight
#83Also: Black 3.0, the purchasable variant of Vantablack For sale at: https://www.culturehustleusa.com/
Neat. I was wondering if you could buy that stuff. There are trim pieces in my car I want to paint with it to eliminate reflections in the cabin.
Can I get in on that action? I don't understand why instrument cluster bezels are universally chromed but I hate it and my eyes hate it and I'd really like to look at my gauges without getting blinded.
Re: 'Whitest ever' paint reflects 98% of sunlight
#84What we need is a paint that turns white when air temperature is high, and black when air temperature is low to reduce our heating and cooling needs.
Though black surfaces radiate energy more easily due to higher emissivity, and white radiate less due to low emissivity. So the benefit may be less than you think.
Re: 'Whitest ever' paint reflects 98% of sunlight
#85Earlier quoted context omitted.
Neat. I was wondering if you could buy that stuff. There are trim pieces in my car I want to paint with it to eliminate reflections in the cabin.
Can I get in on that action? I don't understand why instrument cluster bezels are universally chromed but I hate it and my eyes hate it and I'd really like to look at my gauges without getting blinded.
Sadly, from their FAQ[0]:
Q. Can I paint my car / bike etc...
A. NO - 3.0 is quite fragile and will just scratch off, it won’t weather well.
Q. Can I put a topcoat over it then?
A. NO that will destroy the matte effect, and many topcoats (including our COAT) will react with the paint and ruin the finish.
https://culturehustle.com/collections/black/products/black-3... (it's on the right hand side a few scrolls down the page)
Re: 'Whitest ever' paint reflects 98% of sunlight
#86Too early for this.
Re: 'Whitest ever' paint reflects 98% of sunlight
#87[deleted]
Re: 'Whitest ever' paint reflects 98% of sunlight
#88Someone needs to compile a list of all this fringe tech that I see popping up in my feeds, almost daily now. I know there are techpress blogs that pump out articles like this, but there doesn't seem to be an authoritative compendium of such tech anywhere on the net. I could curate this by hand with 3 hours of free time and some Red Bull I suppose. The reason I want this is because we seem to be swimming in innovation…
I think part of they problem is that whoever invented this paint is going to want a massive premium for its sale. So it'll get some niche industry use until the patent expires and people start painting their desert roofs with it, or whatever else. Apply to this virtually every technical innovation that is iterative. Fundamental breakthroughs allow for a shakeup of the incumbents, iterative ones don't, due to the archaic IP laws that only serve to stifle innovation. I think a better solution would be arbitrated profit sharing as a percentage of the cost of the product proportional to the value added with no requirement for the consent of the rights owner. Decay the percentage to 0 over the same timespan as current patents.
Re: 'Whitest ever' paint reflects 98% of sunlight
#89Earlier quoted context omitted.
If that's 99.6% reflective, how is this new paint the whitest ever at only 98%?
Could be the spectrum that its tested under. Maybe the 99.6% is visible light and the 98% is all energy from sun. If that's the case, the 98% is much more impressive.
From the thermal imaging results given in the article, i'd say your conjecture is correct.
Re: 'Whitest ever' paint reflects 98% of sunlight
#90Won't this rapidly lose reflectively anyway on top of any city building due to soot/dirt? Lowering cost or increasing durability probably matters far more for reflecting sunlight using white paint.