Degree of flow resistance of a liquid:
- Measurement method: Brookfield HAT
- Unit: millipascal seconds (mPa.s) or centipoise (cP)
Low viscosity: liquid (water)
High viscosity: pasty (syrup)
Viscosity
- A measure of resistance to the flow of a liquid
- Measured on a Brookfield viscometer and thermosel according to ASTM D 3236
- The viscosity of a hot melt drops as the
temperature increases
- Low viscosity - Water
- High viscosity treacle
- Unit of viscosity - Poise, centipoise (cPs) or millipascal seconds (mPas)