[Kanashimu]

I'm trying to add a thin layer of coating on my CIEM (Unique Melody Miracle) to improve seal/fit, as I'm getting no bass without pressing on it. Does anyone know of alternatives to nail polish, or is that the best long term solution?

It needs to be cheap, easy to find, last long, be completely non-toxic, hypoallergenic.

Thanks.
 
 
Edit - I don't want to try another refit because I got a refit with the same issue. I don't want to blow another $200 and over a months time.

 

[Kib]

Have you looked at picking something up at a hearing aid supply house.  Seems like I've seen stuff that goes on like a liquid nail polish that is expressly made for building up an acrylic earpiece, although it might also need to be UV set.