This did interest me very much, and I thank you, some of the stiff brushes I have will thank you too ;). This said after berating myself yesterday for not cleaning a couple of brushes thoroughly enough after using an acrylic varnish with them.
Rubbing Alcohol (Isopropyl) is also great to create different effects within an acrylic painting. If you drip the alcohol onto your painted surface it will dissolve the top layer of paint to reveal the colours underneath, you can also mop at it with a textured paper towel to create interesting patterns. This can make for a beautiful water effect if layers of blue and green paint are used. I have found this technique works best if the top layer of paint is still wet. It is great fun experimenting with the different effects that can be achieved with different colour choices and different amounts of Isopropyl dripped over the surface.
I believe the main ingredient to the Chroma Atelier Acrylics unlocking formula is Isopropyl alcohol, so you could really just the regular alcohol and save some $$.
Another note, I think I would make sure to get the more pure Isopropyl alcohol (90%), not rubbing. It's usually right by the regular alcohol in stores like WalMart. I'm not sure what they add to the rubbing alcohol, but I wouldn't want to put something extra into the paint.