[78-L] hardening fluid-not what you are thinking!

[neechevoneeznayou at gmail.com]

I found a 10" paper sleeve, and the advertising on it is all for 
Duotone. Stylii, Stellite cutting needle, Star Sapphire (that was also 
the name of a comic book character), and the one I have never heard of -

Duotone Hardening Fluid - get more plays from this record by applying 
Duotone Hardening Fluid. Price $.50

Anybody ever used this stuff? Does it really give you more plays from 
your record? How did it work?
-- 
Joe Salerno