Shoegoo or gear aid Freesole. tried both and freesole is a little bit more runny and takes a little more time to set so gives you more time to play with. Once you used it, for long term storage put a bit of Vaseline on the lid thread for easy future lid removal and put whole lot into freezer. thaw when needed again.
Tried all the other glues and sealants over the years, none of them lasted long.
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