Impressive light sensitive pigment
Added 2023-02-18 08:12:12 +0000 UTCAfter testing the UV detection card I took a look online for the UV sensitive colour changing pigment it used, and found that you can buy it as a bare pigment powder.
I think the rather dramatic warnings on the packet reflect the fact that the supplier I used is clearly aimed at industrial level paint finishes, so the powder is probably safe for mild home project exposure. But don't eat or snort it, or rub it in your eyes.
Even a tiny amount in resin gives a very vivid reaction to UV, as you'll see in the video.
https://www.youtube.com/watch?v=y2fdPznbrXM
Comments
Thanks, Clive, for the chemistry experiment. This might make a self-erasing bulletin board using a pen with a tint UV led. You write something and snap a photo of it before it's too late. 😂👍
John Lundgren ~ Acme Fixer
2023-02-19 20:17:37 +0000 UTCThe channel DipYourCar has added thermochromatic pigments to Plasti-dip coatings in their videos but not this stuff yet, would be very interesting to have a car that changes colour when you go outside.
Matt Tester
2023-02-19 12:43:02 +0000 UTCIt seems to be optimised for the UVA area.
Big Clive
2023-02-19 00:30:40 +0000 UTCThat might work.
Big Clive
2023-02-19 00:30:10 +0000 UTCIt gradually reverts back over about 5 minutes.
Big Clive
2023-02-19 00:29:41 +0000 UTCDoes the powder act differently with the different bands of UV? A, B, C ?
Jeff Larson
2023-02-19 00:13:43 +0000 UTCCould you mix the powder into your whoofle juice for pretty pink mushroom clouds? Those black gloves look positively evil by the way - spankatwangy! With them you don't need any powder to make cheeks glow pink.
Ymir the Frost Giant
2023-02-18 15:29:09 +0000 UTCIf you mix the photochromic and the flourescent into the same mold, can you gets flower 🌺 that is red in daytime, and green at night?
Mike Bird
2023-02-18 14:03:09 +0000 UTCThis is how you determine who's been stealing your stash...
Curtis Hoffmann
2023-02-18 13:19:47 +0000 UTCI like that it's 5G. Much faster than old 3G powder.
Rasmus
2023-02-18 12:15:47 +0000 UTCBreaking Bad big Clive edition… 😂
Lostngone
2023-02-18 10:34:42 +0000 UTCVery cool! A US store also has thermochromic pigments which react similarly to this but with temperature rather than UV. For the UV one I’m curious if there’s a way to control the transition speed.
The Griffiths Family
2023-02-18 09:00:17 +0000 UTC
