Opacity

Opacity (hiding power) and whiteness can be measured with the Sheen-Opac using a standard colorimetric optical geometry.

Hiding power charts are used to determine or compare hiding power and contrast ratios of pigmented coating materials such as paint, emulsions and inks.

For test that allow for wet film applications, the Pfund Black & White Cryptometer provides simple rapid tests to determine opacity in terms of hiding and spreading powers.