5 HN users recommended this tutorial5 months2023–2026score 5
Years with an HN recommendation, 2007–2026
HN points to it as an impressive, hands-on DIY demonstration of passive radiative cooling that works in practice.
Tech Ingredients shows how to make a homemade radiative cooling paint, with a custom liquid panel that cools below ambient temperature outdoors. The video covers the materials and how to apply the paint.
“Great video about making home-made high reflectivity paint” (HN, 2023)
Two YouTube researchers[0][1] (they make science content that is very much not in the traditional form of YouTube) have been working on Infrared Cooling Paint for almost a year now and have been detailing how individuals can make it at home (although a fairly involved/lengthy process today.) There's definitely something here, hopefully someone sells it pre-made, I'd love to try some. [0] [link] [1] [this video]
Technology Connection is a fantastic YouTube channel that shows how to build all sorts of useful things. Their latest video is on passive cooling and very impressive. [this video] Warning: the “senior-engineer; knows how to make stuff” energy from that channel is off the charts. Enough to warn people on HN.
You can check out Tech Ingredients video [0] on the same topic, which will give an answer to your question. It is: Yes, it is better than regular white paint [0] [this video]
Answers whether cooling paint beats regular white paint
Great video about making home-made high reflectivity paint: [this video] Aluminium plate painted with this paint is cooler when exposed to the sun not only than unpainted plate but also ambient air which feels really magical for me.
Home-made high reflectivity paint that stays cooler than ambient air
You might like NightHawkInLight's videos on the topic[0] and Tech Ingredients[1] - they've been working on making paint using this technology with an at-home DIY process and experimenting with it. [0] [link] [1] [this video]
It's a thing in from thousands of years ago [link] and today [link] for PDRC there are a couple good videos about it from NightHawkInLight [link] , [link] and Tech Ingredients [link] [this video]
Are you perhaps thinking of radiative cooling, e.g. paint that reflects close to 100% of all light, excluding the spectrum at which room-temperature objects radiate heat, resulting in a net cooling effect? E.g. [Revolutionary Paint: How to Make Surfaces Stay Cool in the Sun]( [this video] )
Radiative cooling paint reflecting nearly all light
DIY radiative cooling paint from YouTuber NightHawkInLight - [link] It has pretty impressive performance. Tech Ingredients did one or two vids as well - [this video] Was thinking of whipping up a batch for my rv.
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