Three ceramic pastes based on alumina with differ- ent binder systems were characterised using physi- cally based equations and the pressure drop measured as they passed through an experimental honeycomb die. Using an additive approach the pressure drop through the honeycomb die was pre- dicted from the paste parameters derived by the characterisation method and the results compared with the experimentally determined pressure losses. In simple pastes based on a clay-starch binder sys- Tem, where their pressure-velocity relationships Were near-linear and the die entry velocity depen- Dence was small, the predicted and experimental Values were in reasonable agreement (± 10/100) but In more complex systems using polymer solution Binders the fit was less accurate (-10 to -45/100) for The best of the four models evaluated.
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