Hydrogel viscosity can be determined by using rheological techniques. Coatex produces rheological additives for aqueous formulations. Important material properties of the fluid include viscosity, pH, various rheological factors, and others. The rheological properties of borate cross-linked guar gum hydrogel mainly depend on the pH value. Alternatively, a colloidal gel may form in concentrated suspensions which changes its rheological properties. Concrete's and mortar's workability is related to the rheological properties of the fresh cement paste. Polymer clay plastisol is also categorized as a plastigel because of its rheological properties. LDPE and LLDPE have unique rheological or melt flow properties. The most important rheological factor in the wet extrusion of high-starch extrudate is temperature. Baking quality is determined by rheological properties of wheat flour. Psychorheology is the sensory judgement of rheological properties. Methyl cellulose is also used as paint rheological modifier to prevent paint sagging. Proper tissue perfusion can occur only when blood's rheological properties are within certain levels. This allows the manufacture of different cheeses with a variety of rheological and organoleptic properties. The speed of printing food is tightly correlated to the rheological properties of the materials.