The silver conductive pen is a better alternative to the bare conductive pen build without the adhesive property. You can build your own paper circuits, repair traces or even build your own custom PCB on glass!
With a drying time of 1 minute in average in room temperature you can design and test your circuits quickly. It is suitable for use on hard and smooth surfaces similar to a ballpoint pen as the valve opens releasing the contents only when pressed. Drawing circuits on a fabric while possible would be difficult. Once dried, the “ink” is corrosion resistant, however it is not waterproof.