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Epoxy System for DIY Target Bonding

Our KL-325L silver-filled 2-part epoxy cement provides an economical means of do-it-yourself target bonding.

  • Economical alternative to indium or elastomer bonding— effectiveness varies with application
  • Adhesion properties of glue combined with the thermal and electrical conductivity of silver
  • Cure time is approximately 24 hours at 25°C
  • In-vacuum use recommended at medium vacuum pressure ranges (10-3 Torr and above)


KL-325L Epoxy System
Epoxy KL-325K
Uncured Resin Silver Paste
Volume Resistivity @ 25° C 0.001 ohm-cm
Volume Resistivity @ 100 ° C N/A
Tensile Shear
@ 25° C
1,200–2,500 psi
Shelf Life
@ Room Temperature
4–5 mo
Pot Life @ Room Temperature 1–2 hrs
Cure Cycle (After Mixing) 18hr @ 25° C; 2hr @ 60° C
Thermal Conductivitycal/sec/cm2/°C/cm 25 x 10-4
Coeff. of Expansion cm/cm/°C N/A
Working Temperature -60° C to 175° C

Deposition Materials FAQ
Click here for answers to some of the most common questions we get asked.
Contact Us
To speak with someone directly, please call 1-412-387-9200 or email international@lesker.com.


  Click here for the Silver Vacuum Epoxy Materials SDS

Ordering Table

Description PartNo Price Add To
Description PartNo Price Add To
Silver Vacuum Epoxy
KL-325K $286.00


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