viscosities of the PVA-containingsuspensions (Table 1) support the idea of aflocculation/stabilization mechanism inwhich adsorbed PVA-molecules areinvolved. Both stabilization and flocculationof suspensions could be governed bypolymer adsorption or by some synergeticinteraction in which the adsorbed polymersare involved. The well-known pigmentshock observed upon addition of PVA is dueto bridging flocculation10. A homogeneousdistribution of the adsorbing polymer priorto adsorption (without local surpluses ordeficits) promotes steric stabilization