Glue?

[Kostas Kritsilas]

(02-03-2021 06:55 PM)KimH Wrote:  I have a couple of pieces I need to glue together on the 71B.

I know THOUGHT that regular Super-Glue (the obvious answer) had a tendency to attack both the circuitry and the PCBs - over time - if you are not very careful.

I was searching for a hint here on the Museum, but could not find anything.

Any hints are welcome.

EDIT - Thanks for the comments! I will give Cyanolite a try

KimH:

In the past I have had occasion to work for a couple of large electronics firms, in the factories that produced electronics ranging from consumer (PCs) to communications (Cellular Base Stations and Central Office Switches). All of them used cyanoacrylate (what you call Superglue) for tacking down modification wires (what is now called "bodge wires"). In all cases, the cyanoacrylate glue was tested for its effects on PCBs (solder mask, PCB traces, and gold plated connector fingers and connector pins) and found to be safe for use. I don't know what brand or concentration your "Superglue" is, but as a general rule, cyanoacrylate does NOT attack PCBs, even when accelerator is used. The electronics industry standard glue was Loctite (may have been type 631, but don't quote me on that). Note, this is not just a short term test; central office switches are normally in service for 25 years, and that type of life test was done on the Loctite cyanoacrylate glue, with and without accelerator.