Possible to repair the tape?

I have an audio cassette that snapped while being played several years ago. It has someone dear to me on it and I dunno where I heard this but I think its possible to use clear nailpolish to repair the break in the tape. The tape didn't get chewed up or anything, as soon as I heard the snap I stopped it and took it out. Please confirm if nailpolish works and advise on how to go about this repair, I would really appreciate it! Thanks so much,

Solange