What are typical values for 'K' in the Ostwald model for non-Newtonian fluids?

[Curl]

I need to make a simple model of a strain-hardening fluid flow, basically to find shear force on a wall. I'm looking at the Ostwald model
http://www.answers.com/topic/power-law-fluid

but I can't find any values for "K" for any material. I don't really care too much what material I'm looking at, I just want to at least get an idea of what it typically looks like. Does anyone know of any resource with tables of some K values?

 

[Andy Resnick]

There are some values here:

http://www.obitet.gazi.edu.tr/makale/makale/internalcombustionengines/226.pdf

The numbers seem to be between 1 and 10 for the systems considered.

http://iopscience.iop.org/1468-6996/13/2/025008/pdf/1468-6996_13_2_025008.pdf

Gives values between about 1 and 2, if I am reading it correctly.