I've seen mixed things about Black 2.0, apparently it had the usual tendency of getting slightly lighter as it dried. The video I posted shows comparison between Black 2.0 and Black 3.0 quite well I think.
From this article: https://www.fastcompany.com/90300113/move-over-vantablack-you-can-now-buy-the-worlds-blackest-black-paint
"His first version, Black 2.0, wasn’t quite as black as Vantablack, since it only absorbed 95% of the visible light (Vantablack absorbs about 99%).
Now, Black 3.0 is out and available on Kickstarter for about $32 per 150ml tube. According to Semple, it is the blackest, mattest, flattest acrylic paint available on the planet, capturing up to 99% of all the visible spectrum radiation. The paint is based on a new pigment called Black Magick, whose exact composition they aren’t disclosing. Black 3.0 is made up of this pigment, combined with a custom acrylic polymer. Semple and his colleagues claim that the polymer “is special because it has more available bonds than any other acrylic polymer being used in paints,” allowing more pigment density. The paint is then finished with what they claim are new “nano-mattifiers,” which remove any shine from the paint. Unlike Vantablack, the resulting paint is soluble in water and nontoxic"
Thankyou for your feedback on flaking! Before I paint the drawtube I will certainly check this out. ?