For testing the surface tension
To determine the cleanliness of surfaces
Test inks can provide information about the adhesion of printing inks, paints and adhesives on all surfaces such as plastic, metal and glass and about the degree of cleanliness in mN/m (dyne/cm).
The surface tension is determined by applying the test ink to the surfaces to be evaluated as a line a few centimeters long and observing the behavior of the ink line.
More information www.arcotest.info:
here is the online shop www.arcotest.de: