BarePaint is just like any other water-based paint... except that it's electrically conductive! This means that you can actually paint wires onto things like models, clothes, furniture, walls, almost anything you can think of. Standard acrylic or water-based paints can even be used alongside Bare Paint to act as insulation or to create multi-layer circuitry!
You can apply Bare Paint like any other water-based paint. You can use a brush, a roller, printmaking equipment, some intrepid users have even tried to spray the material through an airbrush! It's important to note that as Bare Paint dries the conductivity increases (and will continue to increase to a certain extent even after the Paint "feels" dry), so if your project requires calibration, let the Paint dry completely before testing it.