Examples to help understand the viscosity of silicone or casting resin : RTV Steve
Viscosity Show Spelled Pronunciation [vi-skos-i-tee]
1. the state or quality of being viscous.
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. Viscosity describes a fluid’s internal resistance to flow and may be thought of as a measure of fluid friction. For example, high-viscosity magma will create a tall, steep stratovolcano, because it cannot flow far before it cools, while low-viscosity lava will create a wide, shallow-sloped shield volcano.  All real fluids (except superfluids) have some resistance to stress, but a fluid which has no resistance to shear stress is known as an ideal fluid or inviscid fluid.
|Water @ 70° F||1-5|
|Blood or Kerosene||10|
|Anti-Freeze or Ethylene Glycol||15|
|Motor Oil SAE 10 or Corn Syrup||50-100|
|Motor Oil SAE 30 or Maple Syrup||150-200|
|Motor Oil SAE 40 or Castor Oil||250-500|
|Motor Oil SAE 60 or Glycerin||1,000-2,000|
|Karo Corn Syrup or Honey||2,000-3,000|
|Hershey Chocolate Syrup||10,000-25,000|
|Heinz Ketchup or French’s Mustard||50,000-70,000|
|Tomato Paste or Peanut Butter||150,000-200,000|
|Crisco Shortening or Lard||1,000,000-2,000,000|