Homebrew PCBs

The Following Patent might be helpful

US5,270,368
Piezo inkjet inks and methods for making and using same
3M Innovative Properties Company

An organic solvent-based piezo ink is disclosed having (a) a 
particulate material; (b) a binder; (c) a plasticizer; (d) an organic 
solvent; (e) a fluorochemical surfactant; and (f) an antifoaming 
agent including an oil. Preferably, the particulate material is 
provided by an antifoaming silicone oil. Optionally, light and heat 
stabilizers are also included. Methods of making and using this 
ink are also disclosed.

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Regards
James