I doubt you will ever find out EXACTLY what is inside any manufacturers paintball, as I suppose it will be a secret, but they should give you a rough idea. Water Starch, and food colouring seems to be pretty much it, although I would guess there is something else in there to advertise this 'hard to wipe' fill that paintball comanies make.
chuck had some stuff down extreme, that was basically water, with some glow in the darky type stuff, u couldnt see hits cos it got sokaed up straight away!