QFH 100 grid knife operation steps: QFH 100 grid knife is also known as grid divider, grid adhesion tester. The QFH 100 grid knife was used to measure the adhesion performance of the paint film by the cross cutting method. Contains 3 blades.
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1. Use a tool to cut a cross lattice pattern on the coating, and cut it up to the substrate;
2. Brush five times in a diagonal direction with a brush, stick the tape on the cut and pull apart;
3. Use an illuminated magnifying glass to check the grid area;
4. Grading according to the evaluation criteria
Technical Parameters:
Executive standard: GB / T9286-88
ISO2409-72
DIN53151
Cutter: 11 blades Blade distance: 1mm, 2mm, 3mm
Remarks: Cross cutting
QFH hundred grid knife detailed introduction: Application: Performance test for measuring the adhesion of paint film by cross-cutting method Technical characteristics: Cut and penetrate the paint film in a grid pattern, and evaluate the resistance of the paint film from the substrate according to the six-level classification.
QFH hundred grid knife technical parameters and operating steps