Viscosity is a measure of the resistance of a fluid

Viscosity is a measure of the resistance of a fluid which is being deformed by either shear stress or tensile stress. In everyday terms (and for fluids only), viscosity is “thickness”. Thus, water is “thin”, having a lower viscosity, while honey is “thick”, having a higher viscosity. Put simply, the less viscous the fluid is, the greater its ease of movement (fluidity).

Viscosity describes a fluid’s internal resistance to flow and may be thought of as a measure of fluid friction. All real fluids (except superfluids) have some resistance to stress and therefore are viscous, but a fluid which has no resistance to shear stress is known as an ideal fluid or inviscid fluid.


Water @ 70° F / 21° C 1 - 3  centipoise (cps)
Blood or Kerosene 10 centipoise (cps)
Ethylene Glycol or Anti-Freeze 15 centipoise (cps)
Motor Oil (SAE 10) 50 centipoise (cps)
Corn Oil  65 centipoise (cps)
Unfilled Rigid Urethane Resin 80 - 120 centipoise (cps)
Maple Syrup or Motor Oil (SAE 30) 150 - 200 centipoise (cps)
Caster Oil or Motor Oil (SAE 40) 250 - 500 centipoise (cps)
Glycerin or Motor Oil (SAE 60) 1,000 - 2,000 centipoise (cps)
Urethane Rubbers  1,000 - 2,000 centipoise (cps)
Honey or Corn Syrup  2,000 - 3,000 centipoise (cps)
Molasses  5,000 - 10,000 centipoise (cps)
Chocolate Syrup  10,000 - 25,000 centipoise (cps)
Silicone Rubber  14,000 - 40,000 centipoise (cps)
Ketchup or Mustard  50,000 - 70,000 centipoise (cps)
Peanut Butter or Tomato Paste  150,000 - 250,000 centipoise (cps)
Lard or Crisco Shortening  1,000,000 - 2,000,000 centipoise (cps)
Caulking Compound  5,000,000 - 10,000,000 centipoise (cps)
Window Putty  100,000,000 centipoise (cps)

These are general averages and NOT specifics, not all products fit neatly in this chart. Please check Technical Bulletins for specific mixed viscosity of products.