Reliable electrical connectivity is critical in electromechanical assemblies designed to withstand the extreme temperatures and pressures of space — where a single failed bond can cascade through mechanical and electrical systems, threatening spacecraft integrity and crew safety. This case study explores how Master Bond EP21TDCS-LO, a two-component, silver-filled epoxy, met demanding requirements in two real-world space-environment applications.

EP21TDCS-LO is engineered to maintain high-strength conductive bonds between dissimilar materials at temperatures as low as 4K, while passing NASA low-outgassing specifications. Its simple one-to-one mix ratio, 30–40 minute working time, and flexible cure schedule — room temperature in 24–48 hours or accelerated at 200°F — make it practical for complex assemblies. With volume resistivity below 10?³ ohm-cm, shear strength exceeding 850 psi, and a T-peel strength of over 5 pounds per linear inch, it delivers a rare combination of conductivity, strength, and flexibility uncommon in silver epoxies.

In the featured applications, EP21TDCS-LO proved its performance bonding specimens in a cryogenic space-environment test chamber studying electrostatic discharge effects on spacecraft, and securing electrodes in an electrohydrodynamic pump designed for active thermal control in space platforms. Read the full case study to see how EP21TDCS-LO can address your most demanding space-environment bonding challenges.