The 100-grid knife is an instrument manufactured by using the principle of the adhesion test of the grid method and used to determine the adhesion of the paint film, which is used to evenly draw out a square of a certain size and size, and evaluates the adhesion degree of the coating film to the substrate by evaluating the integrity of the coating film in the grid, which is represented by 'grade'. It is mainly used for the determination of adhesion of organic coatings by the grid method, not only for the laboratory, but also for the construction site under various conditions.
The "grid method" is widely accepted in CHINA and has been rated as a fast and effective method for determining adhesion by international standards. There are various styles and adhesion test methods of 100-grid knives, and they have been used to evaluate the adhesion of paint coatings.
In the process of adhesion test, there are many influencing factors, such as the flexibility of the coating, the presence of an interfering layer (whether there is an interfering layer between the coating and the substrate), etc. The scribing method is mainly cut with a 100-grid knife with single or multi-piece cutting, and after the development, there are many more functional, more convenient and effective models, which can directly show the adhesion of the tested product.

TQC CC3000 series adjustable grid adhesIon Meter imported from the Netherlands, with SP1680,SP1681、SP1682、SP1683、SP1684 five models,The accuracy can be adjusted according to the specific test needs to achieve a precise cutting depth for more accurate testing of adhesion. Compared with other brands and other types of 100 grid knives, this set of 100 grid knives has tool sizes that can be used for different coating film thicknesses and substrates according to the standard, and can be applied to a variety of adhesion tests by only adjusting them, which is very convenient. Each set of 100 grid knives consists of a lightweight, comfortable handle, tough knives, and easy to carry. Also included are brushes, small magnifying glasses, and adhesive tape.





【Sold separately】
SP9700 Illuminated Magnifier 2.5x
SP1710 nylon brush is used for adhesion testing
SP3020 tape, one roll, with an adhesion of 7.6 N/cm
SP3007 tape, one roll, has an adhesion of 4.3 N/cm
SP3010 adhesive tape, three rolls, with an adhesion of 4.3 N/cm
| TQC | Knife teeth | CC1000 | CC2000 | CC3000 | Suitable for film thickness environments |
| Scratch lattice adhesion instrument | - | The blade holder is automatically adjusted, and the round cutter has 8 cuts | The blade holder is automatically adjusted, the cutter can be easily changed, and the swivel handle is included, eliminating the need for additional tools | The blade holder maintains a fixed distance between the varnish surface and the two auxiliary wheels, and the cutting depth can be precisely adjusted to ensure repeatability | - |
| ISO2409/ASTM D3359 | 1 | VF1839 | SP1690 | SP1680 | ISO2409: 0~60μm (sturdy substrate); ASTM D3359: 0~50μm (Robust Substrate) |
| ISO2409/ASTM D3359 | 2 | VF1842 | SP1691 | SP1681 | ISO2409: 0~60μm (soft substrate), 61-120μm(Sturdy substrate.)); ASTM D3359:50~125μm (Solid Substrate) |
| ISO/DIN2409 | 3 | VF1844 | SP1692 | SP1682 | 121-250μm(Sturdy substrate.)) |
| ASTM 3359<2009 | 1 | VF1846 | SP1699 | SP1683 | 0~50μm(Sturdy substrate.)) |
| ASTM 3359 is less than 2009 | 1.5 | VF1847 | SP1700 | SP1684 | 50~125μm(Sturdy substrate.)) |


