EMS Technical Data Sheets

Conductive Silver Pen

EMS #12644


Use the Conductive Pen to draw precise, highly conductive silver traces, jumpers and shielding. This water-based, quick drying, non-toxic con-ductive silver pen is composed of  high purity silver nanoparticles. Draw on conductive silver pathways, repair damaged circuit traces and apply smooth jumpers in electronic applications. The Conductive Pen dries at room temperature. It’s ideal for electronic prototyping, manufacturing and repair applications where heat curing is not desirable. Safe for use with common circuit materials, the Conductive Pen can be applied over metal, glass, solder mask, and both rigid and flexible surfaces. The silver content also provides superior corrosion resistance and can be soldered to, depending on the surface.


  1. Make sure surface to be repaired is clean and free of oil.
  2. Shake the pen VIGOROUSLY for 20-30 seconds to mix the conductor. You may also tap the tip on a hard surface several times. Note the pen’s internal shaker assists in mixing the silver particles
  3. Press the pen lightly against the surface to be repaired. Squeeze the pen barrel firmly to start and then regulate the conductor’s flow. Practice with the pen before working on the repair. If clogged, remove white pen tip by turning it clockwise, and clean. If the silver ink still does not flow, attempt to draw on the alcohol wipe (1 included with pen) to start the flow of ink.
  4. Allow to dry for about ten minutes. Air cure conductivity is reached in 20 minutes or less depending on surface.
  5. Wipe pen tip clean after use and replace cap for storage.


Technical Information


Composition properties:

Assay 50% Silver by Weight
Tip 1mm Ball Point Pen
Silver Particle Size <10 microns
Setting Rate <2 mm/Hr
Thinner Butyl Acetate


Cured Properties:

Resistivity 0.05-0.2Ω/sq/mil (2-10Ω/cm of writing)
Adhesion Excellent to good
Solder Wetting 2-3 Seconds
Solder Leach Wetting <5 seconds


Use Procedures


Drying: Air dry in 10 minutes at room temperature. Maximum air dry conductivity after 20-30 minutes. Heat cure in 3-5 minutes at 250°F-300°F (121°C-148°C) for maximum conductivity.

Soldering: 350°F(176°C) for <5 seconds after heat cure. Use low temperature solder and a low temperature soldering iron for best results. Hand soldering at higher temperatures is not recommended.

Traces: Standard tip traces as narrow as 1/32” in width, 1/16” in width on average.

Amount: 60 meters - 200 meters, depending on absorbency of surface.

Shelf Life: six months from first use. Unopened shelf life is 18 months from manufacture.

WARNING: FLAMMABLE. Keep away from sparks or open flame. DO NOT TAKE INTERNALLY. Avoid prolonged breathing of vapor. Use only in well ventilated area. HARMFUL OR FATAL IF SWALLOWED. Additional technical sheets and/or Material Safety Data Sheets are available on request.

Keep out of reach of children

Product Information

Conductive Silver Pen
Conductive Silver Pen MSDS