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Ensinger PEI
Kohesi Bond KB 1031 AT-S Two component, silver filled, cryogenical service epoxy
Categories: Polymer; Thermoset; Epoxy; Epoxy Adhesive

Material Notes: Product Highlights:
  • High purity silver conductive
  • Tremendous toughness
  • Cryogenic service
  • Exceptional peel strength
  • Superior thermal conductivity
  • Withstands severe shocks
Kohesi Bond KB 1031 AT-S is a two component, silver filled, electrically conductive epoxy system suitable for bonding and sealing. It has a convenient 1:1 (Part A: Part B) mix ratio by weight. It offers low volume resistivity (< 10-3 ohm-cm) and high thermal conductivity. This epoxy system readily cures at room temperature and can achieve faster cures at elevated temperatures. The optimal cure schedule is an overnight room temperature set-up followed by a heat cure at 70°C - 90°C for 3 - 5 hours. KB 1031 AT-S can withstand severe thermal cycling, shocks and vibrations even at cryogenic temperatures. It offers an extensive service temperature range of 4K (-269.15°C) to +135°C. It offers outstanding physical strength properties and peel strength. KB 1031 AT-S adheres well to a wide variety of substrates including metals, ceramics, most plastics and glass. It offers chemical resistance to a variety of fuels, oils and water. Part A and Part B have a silver - gray color. KB 1031 AT-S can be applied with minimal dripping; however, it can be made more flowable by adding 5 - 10% of solvent like acetone or xylene. KB 1031 AT-S is widely used in electronics, microwave, aerospace, semiconductor among various industries.

Typical Applications:

  • Bonding
  • Sealing
  • Coating

Information provided by Kohesi Bond Custom Engineered Adhesives

Available Properties
  • Linear Mold Shrinkage
  • Hardness, Shore D
  • Tensile Strength
  • Tensile Modulus
  • Adhesive Bond Strength, Tensile Lap Shear, Al/Al
  • Peel Strength, T-peel Strength, Al/Al
  • Volume Resistivity
  • Thermal Conductivity
  • Maximum Service Temperature, Air
  • Minimum Service Temperature, Air
  • Cure Time, Option 2
  • Cure Time, Optimum Cure: overnight at 23°C plus 3 - 5 hours at 70°C - 90°C
  • Cure Time, Option 1
  • Working Life, 100 g of mixed epoxy
  • Shelf Life, syringes, in original unopened containers
  • Shelf Life, jars, in original unopened containers
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