Masterbond Thermoset Epoxy

Technical datasheet

EP21TDCS-LO

Supplied byMaster Bond- Last Updated on Oct 5, 2025

EP21TDCS-LO by Master Bond is a two component, silver filled, electrically conductive epoxy for high performance bonding and sealing. It is 100% reactive and does not contain any diluents or solvents. It is formulated to cure at room temperature or more rapidly at elevated temperatures.
  • It bonds well with variety of substrates including metals, composites, glass, ceramics and many plastics.
  • It offers good thermal, electrical conductivity, excellent toughness, high strength and low volume resistance.
  • It resists thermal cycling and has a one-to-one mix ratio by weight or volume.
  • It is used for aerospace, optical, electro-optic, semiconductor and OEM applications.
  • It has a shelf life of 3-6 months.
  • EP21TDCS-LO is cryogenically serviceable down to 4K and meets RoHS and NASA Low Outgassing specifications.
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EP21TDCS-LO properties

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PropertiesValue & unitTest conditionTest method
Hardness, Shore D0.0 Visible After LoginVisible After LoginVisible After Login
Low Shrinkage0.0 Visible After LoginVisible After LoginVisible After Login
Mixing Ratio, Parts A to B0.0 Visible After LoginVisible After LoginVisible After Login
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Tensile Strength0.0 Visible After LoginVisible After LoginVisible After Login
Thermal Conductivity0.0 Visible After LoginVisible After LoginVisible After Login
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