How do you choose a viscosity cup?

To select a viscosity cup that will match the needs of your painting you can check the technical data sheets (should be available online of the manufacturers site) and see if a cup is referenced. You can then consider a viscosity cup conversion chart that shows the range of viscosities a particular cup can measure.

How do you calibrate a viscosity cup?

1. Examine the cup for obvious obstruction or damage to the orifice area and general cleanliness of cup.
2. Place cup in stand and level the top edge.
3. Select the recommended Certified Viscosity Standard for the cup to be calibrated.
4. Pour a sufficient amount of oil into a 250 ml container to exceed the capacity of the cup.

Which cup is used to check the viscosity of paint?

Efflux Cup
The Most Basic of Tools: The Efflux Cup In many print, coating and paint applications viscosity is measured using an “Efflux” cup. There are a number of different cups available on the market, some are used for very specific applications, and others can be used across a broad range of processes.

How do you measure viscosity?

Ways to Measure Viscosity

1. Capillary Viscometer. The earliest methods for measuring viscosity were based on using capillary tubes and measuring the time it took for a volume of liquid to pass through the length of the tube.
2. Zahn Cup.
3. Falling Sphere Viscometer.
4. Vibrational Viscometer.
5. Rotational Viscometer.

How to calculate the viscosity of a Zahn cup?

On paint standard specifications, one denotes viscosity in this manner: efflux time, Zahn cup number . One can convert efflux time to kinematic viscosity by using an equation for each cup specification number, where t is the efflux time and ν is the kinematic viscosity in centistokes . Zahn Cup #3: ν = 11.7 ( t − 7.5)

What kind of Cup is used to measure viscosity?

Zahn cup. A Zahn cup is a viscosity measurement device widely used in the paint industry. It is commonly a stainless steel cup with a tiny hole drilled in the center of the bottom of the cup.

What kind of measurement device is a Zahn cup?

Jump to navigation Jump to search. A Zahn cup is a viscosity measurement device widely used in the paint industry. It is commonly a stainless steel cup with a tiny hole drilled in the center of the bottom of the cup.

What are the advantages of a Zahn viscosimeter?

The Zahn Cup-Type Viscosimeter offers many advantages • Simplicity of use; no special skill is required • Convenience; unit is small and lightweight • Fast operation: measurements can usually be made in less than a minute • Durability: cup is of one-piece construction Overall length: 13 ¾ in, cup depth 2 3/8 in, cup capacity- 44 ml