I'm here to report back on my latest experience with Perma Rite #15 glue. For my latest attachment I got three weeks of hold!
I did have to do occasional touch-ups, for which I used Coolpiece ORWG. (I use that because it seems to work, and it only needs a single coat, rather than three.)
Some caveats about the Perma Rite glue: (1) Apparently if you don't wait a day or so before showering your head, it will ruin the bond. Three weeks ago, the bond didn't even last a day, because I attached the unit and then dyed by side hair. I then had to wash the dye out of my hair, and that ruined the bond. (2) It requires three not-too-thin coats. (3) After two weeks, glue started seeping into my front hairs, causing a bit of clumping. This isn't so bad for me because I gel my hair forward, and so don't have a terribly exposed hairline. I think I could have managed to unclump the hair with some olive oil and a lice comb, but I just got creative with gel instead.
This glue seems hard to find at the moment. I know that Debbie is looking into carrying it, if she can and if there is enough demand. In the meantime, if other people want to try out this new glue, you might email Maureen <
[email protected]>, and ask her if she'll sell you a bottle. Alas, it's not cheap.