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This is a two-part, smooth, silver paste that cures to form a hard, durable polymer that is highly conductive, both electrically and thermally. It adheres strongly to metals, glass, and well to most plastics used in electronic assemblies.

It has a convenient 1-to-1 ratio, and a long 4 hour working time. The mixed adhesive essentially acts like a 1-part adhesive for 4 hours. Unlike 1-part adhesives, however, it does not require high curing temperatures or frozen storage, and it has a very long shelf life.

Applications and uses:

The 8331S is used as a solder replacement for bonding heat-sensitive electronic components and for making conductive bonds where solder is not an option, such as when bonding to glass, soft metals or plastics. It allows for quick cold soldering repairs of electronic devices, makes excellent thermal connections, provides excellent EMI/RFI shielding, and is very effective at filling in seams between metal plates. It is useful in applications where the high cure temperatures of 1 part epoxy systems can potentially damage components.

Its primary applications are in assembly of electronic devices. It is used in the automobile, aerospace, marine, communication, instrumentation, and industrial control equipment industries, and is widely used by hobbyists and makers.


Features Applications
  • Electrical resistivity: 0.0060 Ω·cm
  • Thermal conductivity: 0.85 W/(m·K)
  • 1:1 mix ratio
  • Working time: 4 hours
  • Cure time: 2 hours at 65°C
  • Good adhesive strength
  • Strong resistance to water, brine, acids, bases, and aliphatic hydrocarbons
  • Room temperature storage
  • Shelf life greater than two years
  • Bonding heat sensitive electronics
  • Quick cold soldering repairs
  • EMI/RFI shielding
Catalog Number Form Net Volume Net Weight Shipping Weight
8331S-15G Paste 6 mL (0.2 fl oz 14.7 g (0.52 oz) 40 g (1.4 oz)
8331S-50ML Paste 50 mL (1.69 fl oz) 123 g (4.34 oz) 190 g (0.4 lb)
8331S-200ML Paste 200 mL (6.76 fl oz) 492 g (1.09 lb) 650 g (1.4 lb)


Safety Data Sheet
Technical Data Sheet

Product Literature