"FYI Vantablack S-VIS is what Kapoor had the "so-called" exclusive rights to use, so the statement, "Now that the newer Vantablack is no longer the domain of a single person" still doesn't apply. If you notice, all the true Vantablack examples are thin flat surfaces, due to the way the carbon nanotubes are synthesized (high-temp CVD w/ prepared substrates).  All Vantablack examples on "3D" surfaces such as the crumpled up aluminum foil, all of Kapoor's projects, etc. are presenting a coating of Vantablack S-VIS, which Surrey Nanosystems doesn't explicitly differentiate from their standard CVD-grown Vantablack coating."

"First, it must be said that Vantablack isn't a color, it's a product offering made by a CVD carbon nanotube synthesis / R&D company. The color of Vantablack is simply black, black is a color, nobody owns the exclusive rights to use black.Kapoor the artist is using Vantablack S-VIS, which is a pre-synthesized free-standing carbon nanotube powder which can be used to coat surfaces (art, etc.); this product is what the company has actually given the rights to (due to the coating methods being hazardous to an untrained professional). Carbon nanotubes are well-known and suspected to be carcinogenic and teratogenic.There are also no exclusive rights to using carbon nanotube materials either, most nanotube suppliers are providing the material to the semi-conductor market (the equipment to produce nanotubes is expensive as hell and the product yields are low). If you have the funding, you too can have access to your own "UltraBlack" or "Fanta/PhantomBlack" or whatever you want to call it, so don't be upset that you feel you can't play with this material.  Though I wouldn't recommend it either given the toxicity issues mentioned previously."