Density

The density of paint will depend on their ingredients in the paint. Density is also known as specific gravity or mass per unit volume. The more ingredients/particles in paint the more mass per unit of volume. This is called density (S.G) can be written as g/cm3. The reference substance for liquids is nearly always water. It is ...

The density of paint will depend on their ingredients in the paint. Density is also known as specific gravity or mass per unit volume.

The more ingredients/particles in paint the more mass per unit of volume. This is called density (S.G) can be written as g/cm3. The reference substance for liquids is nearly always water. It is important to specify temperature for both the sample and reference. To find the density of a paint you need to establish the weight of the product. For these several instruments are available, pyknometers, immersion bodies, densimeters and weighing scales.

A Pyknometer in combination with a balance is the simplest way to establise the density or SG in g/cm3 of a paint.

The Immersion Ball types in combination with a balance determine the density of a paint as method based on the ‘Archimedes’ principle. The upward force caused by immersing the plummet into the liquid is read from a laboratory balance and expressed in grams/ml.

Electronic versions of Densimeters are cost efficient instruments for calculating the specific gravity with a high resolution level. The systems are suitable for checking liquids as well as other non-metal materials. The value is displayed automatically after the elapsed time.


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