It is used to inspect the spread and damage of single and multi-coat coatings on metal substrates.
- Motor-driven punches are extremely reproducible
- There is no need to zero the steel plate, and it will automatically reset to zero after the test, and there is no cumulative error
- High-precision position sensor with indentation accuracy of up to 0.01 mm
- Comes with a 10x illuminated magnifier as required by the standard for easy observation and judgment of test results
- Plates up to 1.25 mm thick can be measured
- Digital display, all functions are controlled by 2 buttons
Insert the plate into the opening of the instrument with the coated side facing up
Medium force clamps the plate using a clamping device
Start the cupping instrument and observe the surface of the test plate through a magnifying glass
At a constant speed of 0.2mm/s, the steel ball is automatically topped
When the first crack is observed, stop the cupping instrument immediately
The cupping depth value is read out on the digital display
Perform at least three tests on one test plate
GB/T 9753-2007 Paints and varnishes-cupping tests
ISO 1520-2006