At present, the measurement of storage stability is generally at different stages to measure its viscosity (or fluidity), drying time and gloss, etc., to understand whether the performance of the product has declined during storage; Checking should be carried out, so that the performance of the product after a certain storage period can be evaluated. In addition, it is necessary to focus on the sedimentation test of the product, which involves the question of whether the product can be used after a certain period of storage.
The sedimentation test is relatively simple. Generally, a small tank of 1/3 liter is used to store the product for 6 months, and then the tank is opened to test with a 120 mm x 20 mm flat blade weighing 45 grams. Instruments can also be used for measurement, that is, pressing into the ball to measure the force on the sedimentation, and express it with an instrument. In order to quickly obtain the results of storage stability, artificial accelerated sedimentation tests can be carried out.
