Re:Cray blood (Score 1)

Couldn't you just use a silicone fluid like Dow Corning 200 Fluid? It's available in a wide range of viscosities to suit your pumping, flow, and evaporation requirements. We use it as a medium for Dk and Df testing on microwave lamiantes. http://www.dowcorning.com/applications/search/products/?Ntt=200&N=0&Ntx=mode+matchany&WT.svl=3&Nty=1&Ntk=ProductFinder_en