Yes, thank you, I modelled the same problem in CFX, but the results (massflow out) didn't match the experimental messurements at all. The paste is very complex (viscoelastic, high viscous jelly-like, shear thinning), so I was recommanded to use polyflow.

Now I try to use the "real" material parameters and start the calculation again (with no previous solution). See if it will converge..