They're developing a clear version of it!
There are so many applications for it, though.
Put it on your teeth, no more cavities?
Put it on the bottoms of your shoes, pour water on sidewalk, skating in the summer heat?
Imagine the pranks you could play with this. Or the horrible things you could do. Coat random parts of a pool sidewalk in it, everyone will be slipping and falling.
Want someone killed? Coat their tires in it, making them unable to brake at high speeds or in the rain.
Want to be invincible in paintball? Now you know how.
And the applications for magic sound crazy.
Imagine putting this stuff in a specific patter on your shirt. Take your shirt off and ask someone to douse it in water. The water arranges itself in the pattern/lettering!
Better yet, at a party, figure out where the coats are being kept. Go put this stuff on a recognizable coat. Before they leave, make a bet. If you can pour X on their coat and lift the stain without touching it, you get $$$, if you can't, you buy them a new coat and give them $$$.