The paint film crosser is a commonly used experimental instrument for testing the resistance of coatings and substrates. Since it is not an electronic product, many customers may not pay too much attention to whether you need to calibrate your paint film crosser (also called a hundred grids) knife). Tan Dongxing, Zhu Yuehui and Zhu Ling from Nanjing Metrology Supervision and Inspection Institute described in detail how to calibrate the cross-cut device in the paper "Discussion on Calibration Method of Paint Film Cross-cut Device".
Below, we will take you to read their articles together, and hope to bring you a more intuitive and effective calibration method.
This article has already explained how to calibrate the scratcher in great detail. Of course, there may be some differences in the operation details of the paint film scratcher produced by various manufacturers, but the same principle remains the same.
