Testing for Grain Size, Hiding power and Drying
![Chalking Rate Tester Chalking Rate Tester](https://www.erichsen.de/en-gb/products/surface-testing/testing-for-grain-size-hiding-power-and-drying-1/chalking-rate-tester/chalking-rate-tester/@@images/1f0e4a80-0fb4-4be9-8dc0-cfab33486b6f.jpeg)
Chalking Rate Tester
Chalking Rate Tester according to Kempf Model 241
Chalking rate test for paints and coatings, chalking after binder degradation by UV, according to Kempf
![Grain Size Grain Size](https://www.erichsen.de/en-gb/products/surface-testing/testing-for-grain-size-hiding-power-and-drying-1/grain-size/grain-size/@@images/47b38f79-d752-4b84-890b-6ba1b75b2841.jpeg)
Grain Size
Grindometer acc. to Hegman Model 232
For determining grinding fineness, ISO/EN/DIN/ASTM, 4 versions
![Hiding power Hiding power](https://www.erichsen.de/en-gb/products/surface-testing/testing-for-grain-size-hiding-power-and-drying-1/hiding-power/hiding-power/@@images/b2823105-290c-4690-a942-427118c70b99.jpeg)
Hiding power
Test Charts Model 451
For paints and coatings, covering capacity and colour measurement, even without optical brighteners