Film sanding refers to the abrasion resistance and scratch resistance of the coating surface, which is an important indicator of film quality. The test methods for film sanding are generally as follows:
Sandpaper abrasion method: Using a special abrasion test instrument, the standard sandpaper is applied to the coating surface with a specific pressure and motion trajectory to simulate the abrasion under real use. Then use Microscope or Miscellaneous equipment to observe the abrasion of the coating.
Scratching test method: using a scraping instrument, the specific scraping head scrapes the coating surface with a certain movement trajectory and force. Then use Microscope or Miscellaneous equipment to observe the scraping of the coating.
Ball Drop Impact Method: Using a standard ball drop impact instrument, balls of a specific mass and shape are dropped on the coating surface to simulate scratches or impacts on the coating surface. Then use Microscope or Miscellaneous equipment to observe the abrasion and damage of the coating.
NBchao reminds you: Different types of coatings and application fields may require different test methods and standards. In actual testing, appropriate test methods and standards should be selected according to the specific situation to obtain accurate and reliable test results. At the same time, attention should also be paid to the uniformity and Repeatability of test conditions to ensure the comparability and Reliability of test results.
