MG Chemicals Carbon Conductive Pen
The 838AR-P Carbon Conductive Pen easily draws and repair conductive traces. It dispenses a conductive paint made of durable acrylic lacquer that is pigmented with conductive carbon powders. The cured traces are durable and corrosion resistant.
This pen works best on smooth, flat, hard surfaces. The valve-tip opens when pressed against the drawing surface, and the flow is controlled by squeezing the barrel.