



TQC hundred-grid knife (also known as cross-hatch adhesion Tester), available in five models: SP1660, SP1661, SP1662, SP1663, and SP1664, is a method for measuring the adhesion of dry coatings on the surface by making a series of coating incisions. kind of tool. Draw two series of parallel lines, perpendicular to each other, to obtain 25 or 100 squares of similar shapes and sizes. In the scratched area, use a hard-bristle brush to scrub or put tape on it and then tear it off. Observe the treated coating condition and make a judgment based on the standards.
This TQC hundred-grid knife only has one hundred-grid knife. The outer packaging box is a white transparent plastic shell, not a set.







â¢Automatically adjusts the blade holder to ensure consistent pressure exerted by the cutter on the coating
â¢Ergonomic handle
â¢The cutter is easy to replace, no additional tools required
â¢The cutter size range is wide, widely applicable to different coating thicknesses and substrates, and can be selected according to different standards.

ISO/DIN 2409, ASTM D3359
Coatings, automobiles, coatings, laboratories, inks, ships, steel protection, wood and other industries.

The blade is sharp, please pay attention to safety when using it;
Please use the box to store the knife.





SP3007 1 roll of tape with adhesive force 4.3N/cm
SP3010 3 rolls of tape with adhesive strength 4.3N/cm
SP3020 1 roll of tape with adhesive strength 7.6 N/cm
SP1710 Nylon brush for crosshatch adhesion testing
SP9700 2.5x illuminated magnifying glass
TQC cutter head that meets DIN-ISO standards (applicable to CC2000, CC3000)
SP1702 tooth spacing 1 mm
SP1703 tooth spacing 2 mm
SP1704 tooth spacing 3 mm
TQC cutter head that complies with ASTM standards (applicable to CC2000, CC3000)
SP1705 tooth spacing 1 mm
SP1706 tooth spacing 1.5 mm
ISO 2409:
1mm intervals, suitable for solid substrates with coating thickness less than 60 microns
2mm intervals, suitable for soft substrates with coating thickness less than 60 microns
2mm intervals, suitable for all substrates with coating thickness between 61 and 120 microns
3mm intervals, suitable for all substrates with coating thickness between 121-250 microns
ASTM D3359:
1mm intervals, suitable for coating thickness less than 50 microns
1.5mm intervals, suitable for coating thickness between 50-125 microns
| grade | describe | Surface peeling in the cross-cutting area (taking 6 teeth as an example) |
| 0 | The cutting edges are completely smooth and no lines fall off. | |
| 1 | There is a small amount of coating peeling off at the intersection of the cuts, but the cross-cut area should not be significantly affected by more than 5%. | |
| 2 | There is coating peeling off at the intersection of the incisions and/or along the edges of the incisions, and the affected cross-cutting area is significantly greater than 5%, but not significantly greater than 15%. | |
| 3 | The coating is partially or completely peeled off in large fragments along the cutting edge and partially or completely peeled off at different parts of the grid. The affected cross-cut area is significantly greater than 15%, but not significantly greater than 35%. | |
| 4 | Large fragments of the coating peel off along the cutting edge and some squares are partially or completely peeled off. The affected cross-cutting area is significantly greater than 35%, but not significantly greater than 65%. | |
| 5 | The degree of peeling exceeds grade 4. | |


