ac cables falling out of IEC inlets on amps

Arthursmuck and Sherod- I'm applying it as a small ring on the Marinco connector,where it will contact the inlet only in the area furthest from the inlet's prongs, where I certainly don't want it to reach.
I have now installed it on the connectors for my SACD/cd and preamp, in addition to my monoblocks. The jury is still out, as the effect is not nearly as dramatic as when I used it to tweak my monoblocks. After I've lived with it for a while, I'll have a better sense of it. In any case , doing the monoblocks was very worthwhile
Sherod- Yes, this is the stuff. Except, I paid $3.29 for it at a local merchant.
pummy

Tvad- I've tried tape with only partial success. It seems the inlet is slightly tapered, so taping Marinco connector prevents full insertion.
Kenscollick- Your tip of bending the contacts might have some merit. My incentives for replacing the IEC include thr understandin that some are spring loaded and exert a thght grip. Also, I am attracted to the idea of moving up in quality, if it would improve the sound of my system.
Thanks, pummy

Fatparrot-
I take it you have tried blutack and it worked out well for you, and you tried some other brand and it didn't. Can you say a little more about your experience?
pummy

Fatparrot-
I tried your suggetion with regard to Blutack. To say it worked seems, at this time, an understatement. The connectors are staying in place, and there is a remarkable effect on the sound.The image has enlarged, become more specific, and noticably more transparent.
No doubt part of the positive result simply stems from a more solid connection, but I would guess part of it has to do with the vibration damping effect of the Blutack. You may have found a significant tweak here. I'll try it on the IECs on my SACD player and preamp. If it works out, I'll let you know.

It seems to me one solution would lie in the design of the inlet prongs.A possibility would be to spring load them by shaping each prong to be effectively a leaf spring.Easy.