Under the heading of what not to do....
In the absence of heat, have you ever seen plastic melt? Locktite 242 will do it every time! At the time, it seemed reasonable to add a drop of 242 to the nuts and bolts which hold the two halves of a plastic D-sub shell together.
Not a good idea. Within 24hrs, the 242 will melt the plastic. My dual Lightspeed ignition system uses 4 connectors and shells, all shells melted around the threads and had to be replaced.

Angier Ames
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