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Conductive Silver Liquid

User note for conductive silver liquid. How to thin, apply, resuspending the silver liquid and it's properties.
  • Air drying
  • Thinner: Methyl Ethyl Ketone or Toluene
  • Application: Apply from nozzle, by brushing or dipping
  • Shake well before use
  • Keep tightly closed
  • Store in cool, dry area. Refrigeration extends shelf-life

This is a thermosetting material above 85°C.

The solvent is "plumber's glue solvent" and available at hardware and plumbing supply places.

WARNING: Flammable. Do not breathe fumes. Keep away from fire, heat.

Resuspending Silver Liquid

The silver powder used is very small and affects the diffraction of visible light – so it no longer appears silver in colour. However, it is not nearly small enough, considering its high specific gravity, to remain suspended by Brownian motion. The silver powder settles fairly hard within a few days. Use a metal spatula to make it uniform. After that initial stirring, stir or simply invert every few days to maintain the suspension.
Conductivity depends on the distance of silver particles from each other; at high concentrations the gap will be uniformly smaller. At some point with the gap too large, conductivity ceases. So stirring is important.
Do not freeze, but refrigeration will extend the life of the binder.
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