Cryogenic epoxy

Epoxy features

Epoxies are used to install and fasten sensors while providing thermal contact and electrical insulation with the sample. Epoxy can also be used for mechanical attachment and joints. Stycast® 2850FT is a black epoxy resin with a thermal expansion coefficient that matches copper. A silver-filled, low-temperature conducting epoxy provides excellent strength, along with electrical and thermal conductivity.

Low-temperature conductive epoxy

  • Excellent low-temperature thermal and electrical conductivity
  • Low viscosity
  • Thixotropic
  • No resin bleed during curing
  • Low weight loss
  • Low volatility

Note: Epoxy must be cured at a minimum of 50 °C for 12 h to achieve proper electrical and physical properties. Curing at 175 °C for 45 s will achieve optimum properties.

ESF-2-5 and ESF-2-10 can be used to 300 mK and below. Results may vary based on the application and materials used.

This epoxy is used to permanently attach test samples or temperature sensors to sample holders. It is a 100% solid, two-component, low-temperature curing, silver-filled epoxy with high electrical and thermal conductivity and excellent strength and adhesive properties.

Part numberDescription
ESF-2-5Low-temperature conductive epoxy,  5 packets, 2 g each
ESF-2-10Low-temperature conductive epoxy,  10 packets, 2 g each

Stycast® epoxy 2850-FT, Catalyst 9

  • Mixed and applied from two-part flexible packets
  • Excellent low-temperature properties
  • Permanent mounting
  • Exceptional electrical grade insulation properties
  • Low cure shrinkage
  • Low thermal expansion
  • Resistance to chemicals and solvents

Note: It can be chemically removed with methylene chloride (several hours' soak). A commercially available stripper is supplied by Miller-Stephenson Co. at (203) 743-4447, part number MS-111.

Stycast® is the most commonly used, highly versatile, nonconductive epoxy resin system for cryogenic use. The primary use for Stycast® is for vacuum feedthroughs or permanent thermal anchors. Lake Shore uses this product in vacuum-tight lead-throughs with excellent thermal cycle reliability. Stycast® is an alternative to Apiezon® N grease when permanent sensor mounting is desired. (Can place stress on sensor — more information.)

Part numberDescription
ES-2-20Stycast® epoxy, 20 packets, 2 g each

We are not able to accept returns of this product.