A small bottle of sample I took from a local college friend, the ingredients included ATO powder with a particle size of 20-30nm, some surfactant,
and the rest was some kind of alcohol solution. I was told to mix extra anhydrous alcohol at a ratio of 1:3 to dilute it for coating, but I didn't dilute it,
just sprayed it on the sponge to apply the stretched film, and there were some traces of liquid on the surface of the film after drying , it looks the same as the hifiman's.
that shangri la jr driver was later used as a test driver for testing different thicknesses of films.