On my 'to-Do' list for this week was fabricating a new glass/carbon/epoxy seat for my next kayak project (Bjorn Thomasson Njord).
Just a few days ago, I'd read (online) an article from 'Epoxyworks' - the WEST newsletter - about using hair spray in lieu of PVA mold release. No need to get out my (cheap) spray gun to mist the PVA on to the waxed mold, no gun cleanup, and the hair spray (Pantene Extra Hold ! :) ) was on sale at my local drugstore. Aerosol can so it sprayed very nicely.
It didn't work nearly as well as PVA. I got the seat off the mold but it was more of a struggle than usual, and I think it was the wax that was doing the mold release job, not the hair spray. Part of the mold - a small spot of gelcoat - pulled away with the seat, so now that must be repaired.
So, definitely not a technique I'll use again.
My shop does smell nice, though!
(Cross posted to WestCoastPaddler forum)