Quality Assurance<br>Rheological Testing of the Sagging Behavior of Coatings
Ms. C., head of the testing laboratory and responsible for her company's viscometers and rheometers, has a problem. The QA tests used recently do not provide useful information about her coatings. In the test results there are no clear differences between the waterborne coatings that are good and those that cause problems.
From a practical point of view, the following three criteria are important for coatings.