Introduction: For the wet abrasion scrub of architectural coatings and related products, it is generally defined that the end point of the test is that the coating is abraded to a certain length: the inner wall coating is exposed in the 100mm coating area in the middle of the test panel, and the outer wall coating and ASTM 2486 method are that the damaged length exceeds the shim width (12.7mm). To accurately determine the end point of the test, it is not only necessary for the operator to have a preliminary prediction of the wet abrasion scrub times of the test samples, but also for them to be able to accurately identify the length of the abraded coating. However, it is quite difficult in actual operation.

       BGD 528/S Multifunction Wet Abrasion Scrub Tester is equipped with the function of automatically identifying and calculating the length of the test sample from being abraded to the substrate (exposed bottom). It can monitor the wet abrasion scrub of the samples of two channels at the same time, no need to look at the sample on site. Once the exposed length of the test sample reaches the “threshold” set by the operator, the instrument will automatically stop and record the current scrub times, so as to truly achieve unattended. In addition, the operator can also browse the actual pictures of the test panel after scrubbing for any number of times, and can export the pictures to the U disk for checking.