The 842AR-P Silver conductive pen is an extremely conductive, fast drying paint in a convenient pen format. It quickly and easily creates durable, reliable, corrosion resistant, and highly conductive traces. It adheres to a wide variety of substrates. This product works best on smooth, flat, and hard surfaces. It has a Valve tip that opens when the pen is pressed against the surface to be drawn on and it has a soft tube, so the flow may be controlled by squeezing the center of the pen. Applications & usages it is used to draw traces on circuit boards or to create simple circuits on a variety of surfaces for prototyping, hobbies, or Maker projects. It can be used to repair damaged traces on keyboards, game controllers, remote controls, mixing boards, and pcb’s. Repaired devices may be returned to service in only 10 minutes. It is also great for making small connections in or between circuits such as jumpers, through-holes, bridges, and links. It is also good for increasing the surface area of contacts by painting the area around them. It is also great for filling gaps in your EMI/RFI shielding. Attention! shake rigorously before use. For best results hold pen at angle, depress pen tip against surface, and draw pen across surface while gently squeezing middle.