Create electrical circuits on almost any surface. 
Paint is electrically conductive material that is as simple to use as regular paint. Like a liquid wire, this paint can act as a conductive adhesive, can be used as a capacitive sensor, and is suitable for application on a wide range of materials from fabric to wood to paper. Versatile material can be used to paint circuits, cold solder components onto paper, create a cardboard piano, or more. Dries in under 15 minutes to become conductive. Nontoxic.