I've tried repairing cuts and small slashes in my tyres with Superglue with varying results. On a recent club pedal another cyclist mentioned a rubber-like product that he used but I can't find anything via Google.
What do others use?
I use superglue to for my 'round town bike too.
But there is a previous thread for the product that you seek but I can't remember the product name.
Think it might have been Kiwi Mike who posted.
Apols if not.
The search box, top right corner, had your answer, just type super glue into it!
You can find it easily enough on Amazon.