Aging sclerosis: the grease storage time and increase with the consistency of the phenomenon.
Appearance: only the method of checking of intuitive see of grease characteristics, usually including the overall appearance, texture, color and luster, etc.
The overall appearance: smooth, rough, granular, points of oil etc.
Quality of a material: cream shape, elastic, brushed.
Colors: red, blue, yellow, white, still can add restrictions adjective "light", "medium" "deep", etc.
Sheen: bright, matte, etc.
Consistency: consistency is refers to the plastic material under external force of the deformation of the resistance level.
Cone into degrees: cone into the degree of consistency grease is a measure. The greater the degree of the cone, the more soft fat.
Consistency level: NLGI (American grease association) into nine grades, from 000 to six of nine.
Mechanical stability: by mechanical shear resistance grease the ability of consistency change, change the smaller viscosity value, mechanical stability, the better.
Thixotropy: grease is shear, smaller viscosity, stop shear, consistency and the nature of the increase.
Water resistance: from bearing grease resistance in the ability to wash away, resistance to absorb water and make fat because of structural damage ability, in the presence of water to prevent the metal surface when the corrosion of the ability.
Colloid stability: the ability to resist points grease oil.
Similar viscosity: usually the viscosity of the grease with cut speed decreases, so fat viscosity called similar viscosity or apparent viscosity.




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