The two-part MG Chemicals 8331S is an economical, slow cure silver conductive epoxy adhesive designed to give good electrical and thermal conductivities. The conductive adhesive provides excellent EMI/RFI shielding.

Easy 1: 1 mix ratio
Resists thermal and mechanical shocks
Provides the low resistivity needed for many operating conditions
Adheres to most electronic substrates
Strong water and chemical resistance
Effective at filling in seems between your metal plates.
To cure the adhesive faster, you can use higher temperatures up to 150°C

The primary applications for the 8331 are repair and assembly of your electronics in microelectronics and optoelectronics. It is used in the automobile, aerospace, marine communication, instrumentation, and industrial control equipment industries.
Bond electronic devices, repair defective traces and create jumpers on circuit boards

Silver conductive epoxy cannot be soldered to. Doing so causes the product to melt.