Abex:
If you have any luck with lacquer + carbon you might then research violin/wooden instrument lacquer. Some of the highly rated ones are not that expensive (under $20/pint).
There is also a great deal of tweaky info on lacquer/varnish in some of the speaker/Hifi forums.
http://f18.parsimony.net/forum31999/
http://6402.teacup.com/le8t/bbs (in Japanese/use Babel Fish)
It's obvious as to why lacquer changes the sound of drivers, but there may be some info to which to apply to your application.
I would also try searching other Japanese/German/Italian Hifi sites for info (maybe you will come across a DIY C-37 formula).
http://babelfish.altavista.com/ (free translation software)
Most already know this, but powdered graphite is what locksmiths use to lubricate sticky locks (it's cheap and readily available).
If you have any luck with lacquer + carbon you might then research violin/wooden instrument lacquer. Some of the highly rated ones are not that expensive (under $20/pint).
There is also a great deal of tweaky info on lacquer/varnish in some of the speaker/Hifi forums.
http://f18.parsimony.net/forum31999/
http://6402.teacup.com/le8t/bbs (in Japanese/use Babel Fish)
It's obvious as to why lacquer changes the sound of drivers, but there may be some info to which to apply to your application.
I would also try searching other Japanese/German/Italian Hifi sites for info (maybe you will come across a DIY C-37 formula).
http://babelfish.altavista.com/ (free translation software)
Most already know this, but powdered graphite is what locksmiths use to lubricate sticky locks (it's cheap and readily available).