QGS paint film drying time Tester is used to measure the surface drying time and actual drying time of paint film and putty film. The instrument implements the new standard of GB/T1728-79, selects high-precision intelligent instruments, and uses computer information acquisition processors to complete the entire production experiment process. It has the advantages of simple operation, accurate experimental data, and enjoys independent intellectual property rights.
—Place a certain filter paper on the surface of the paint film to be tested, and gently place the instrument on the surface of the filter paper. —After 30 seconds, remove the drying Tester and turn the sample over. —Tap a few times with your fingers. If the filter paper can fall freely and the filter paper fibers are not stuck on the surface of the paint film, the paint film is considered to be completely dry. 1. Equipment and instruments: (1) The total weight of the weight is 200±0.2g, and the bottom area is 1 square centimeter (2) Stopwatch, absorbent cotton, filter paper, tweezers (self-provided)2. The test needs to be carried out at a temperature of 23±2°C and a Relative Humidity of 50±5%.
