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Coating Viscosity Units: Centipoise and Millipascal-Seconds
One centipoise equals one millipascal-second. The equal numerical value does not remove the need for matching test conditions.
Updated · NANOLAB Knowledge
Practical approach
Convert the unit label correctly and retain temperature, spindle or geometry, speed and timing.
A result of 25 cP is 25 mPa·s, but cannot be compared fairly with a differently conditioned test solely because the units now match.
Decision limits
Do not confuse these dynamic-viscosity units with centistokes, which describe kinematic viscosity.
Related guidance
- Comparing Coating Viscosity at Different Temperatures: Build a Fair Test
- Water Hardness Units: Converting mg/L as CaCO3 to Grains per Gallon
- Coating Viscosity Reports: Record the Spindle and Speed
- Coating Thixotropy: Keep Time Under Shear in the Test Record
Method reference: AMETEK Brookfield: viscometer principles. References describe their stated methods or products; they do not certify NANOLAB products or establish compatibility with an unlisted surface.
Ask NANOLAB about the exact product and intended use. Use the current product documentation for formulation-specific instructions.
Continue reading
Comparing Coating Viscosity at Different Temperatures: Build a Fair Test
Compare coating viscosity at consistent sample temperatures and distinguish ordinary flow changes from possible storage damage.
Water Hardness Units: Converting mg/L as CaCO3 to Grains per Gallon
Convert water hardness between mg/L as CaCO3 and grains per US gallon while avoiding confusion with calcium-only or TDS readings.
Coating Viscosity Reports: Record the Spindle and Speed
A rotational-viscosity result needs its test conditions. Spindle and speed are part of the method, especially for materials whose response depends on shear.