Coating scratch knife

The coating scribe applies pressure to the coating surface with a blade to create scratches, which are used to evaluate the adhesion between the coating and the substrate. During operation, a grid is scribed at a standard angle and speed, and the degree of coating peeling is observed to determine the bonding strength. This method is commonly used in quality control for surface treatments such as painting and electroplating.
Selection
The selection of a coating scribing knife must match the coating thickness and hardness. Tungsten carbide blades are recommended for hard coatings, while stainless steel blades are suitable for soft coatings. The blade spacing should be selected according to testing standards. A six-blade knife is ideal for routine inspections, while an eleven-blade knife is used for fine evaluations. The anti-slip handle design enhances operational stability. It is important to ensure that the sharpness of the blade tip complies with the ISO 2409 standard.
Tooth spacing
Number of teeth
Test substrate
Measured film thickness
Number of blades
Applicable standard
Miscellaneous

Terms

Standards

Instruments

Control system using servo motor, scratch speed 254mm/min, weight free lifting, ensure that the needle parts accurately fall on the workpiece, to achieve automatic scratch and zero operation.

$ 3785.00

Using electric Dial design, the scratch length can reach 60mm, the load range is 0-2000g, and the physical characteristics of the coating are characterized by the anti-penetration ability of the scribing needle.

$ 554.00

The high-toughness knife body material enhances the strength of use. The log handle is designed with an open bottle cap and a hanging hole. The total length of the knife is 320mm and the length of the knife is 200mm. The humanized design is easy to operate.

$ 81.00

The high-toughness knife body material is used to improve the use strength. The log handle is designed with the function of opening the bottle cap. The total length of the knife body is 485mm and the length of the knife is 365mm. The humanized hanging hole is easy to store.

$ 84.00

The high-toughness knife body material is used to improve the strength of use. The log handle is designed with the function of opening the bottle cap. The total length of the knife is 190mm and the length of the knife is 95mm. The humanized hanging hole is easy to store.

$ 77.00

The high-toughness knife body enhances the strength of use, the log handle with open bottle cap and hanging hole is designed to be user-friendly, and the total length of the knife is 290mm and the length of the knife is 170mm to meet a variety of ink adjustment needs.

$ 80.00

The high-toughness knife body material is used to improve the use strength. The log handle is designed with an open bottle cap and a hanging hole. The total length of the knife is 194mm, and the width of the knife is 114mm. The 19mm specification is accurate.

$ 77.00

The high-toughness knife body material is used to improve the strength of use. The log handle is designed with hanging holes and bottle opening functions. The total length of the knife is 205mm and the length of the knife is 105mm. The humanized design is easy to operate.

$ 78.00

The high-toughness knife body improves the use strength, the log handle is designed with the function of opening the bottle cap, the total length is 235mm, and the knife length is 125mm. The tail hanging hole is easy to store.

$ 79.00

High toughness knife body material to improve the use of strength, log handle with open cap and hanging hole design user-friendly, total length of 350mm knife length 230mm to meet a variety of ink needs.

$ 81.00

Hand crank type is easy to operate, load 1000g +/- 1g, scratch speed about 1mm/s, test angle 45 °, standard 6B-6H pencil, in line with a number of international standards, through the pencil Hardness grade to accurately evaluate the scratch performance of the paint film.

$ 325.00

Using high toughness knife body material, total length 242mm, knife length 142mm, log handle with bottle cap and hanging hole design, improve the use of strength and easy operation.

$ 78.00

Using equilibrating rod and adjustable weight design, the scratch resistance of the material is evaluated by the scraper head leaving an arc score on the surface of the swirl/spin specimen, which is suitable for a variety of rigid and coating materials.

$ 1811.00

The high-toughness knife body material enhances the strength of use. The log handle with bottle opening cap and hanging hole design is more user-friendly. The total length is 265mm and the knife length is 145mm. The specifications are practical.

$ 79.00

The high toughness knife body design enhances the use strength, the log handle is equipped with bottle opening function and hanging hole, the total length is 415mm and the knife length is 295mm, which is suitable for the preparation of paint inks.

$ 83.00

Articles

Application of Linear Abrasion Tester in Testing Scratch Resistance of Printing Ink Coatings on Packaging
This article introduces the principle, method, and application of the linear abrasion tester in testing the scratch resistance of packaging printing ink coatings.
Key Operational Points of Solvent Resistance Tester in Evaluating Coating Chemical Resistance
This article introduces the key operational points of the solvent rub resistance tester in evaluating the chemical resistance of coatings. The instrument simulates friction and chemical contact, recording the number of rubs before coating failure to assess performance.
The Zahn cup is used for the daily inspection of the viscosity of electrophoretic paint bath solutions.
This article introduces the application of the Zahn cup in daily inspections of the viscosity of electrophoretic paint bath solutions. The viscosity of electrophoretic paint affects coating quality, making daily inspections crucial. The Zahn cup is simple to operate, cost-effective, and suitable for rapid on-site measurements.
High-temperature viscometer measures the flow behavior of powder coatings in the molten state.
This article introduces the use of a high-temperature viscometer to measure the flow behavior of powder coatings in their molten state. Powder coatings need to melt and flow before curing, a process that directly affects the smoothness and performance of the coating.
Salt spray aging test chamber for cyclic corrosion evaluation of coating weatherability.
This article introduces the method of using a salt spray aging test chamber to conduct cyclic corrosion tests for evaluating the weather resistance of coatings.
Application of Automatic Coating Machines in the Preparation of Ceramic Coatings for Lithium-Ion Battery Separators
This article discusses the application of automatic film coating machines in the preparation of ceramic coatings for lithium battery separators. Traditional manual coating methods often result in uneven coatings, which can adversely affect battery performance.
Application of Automatic Film Coating Machine in Waterproof Coating Finishing of Textiles
Automatic film coating machines are used for waterproof coating finishing on textiles, enabling precise control of coating thickness, improving uniformity and production efficiency.
Study on the Dispersion Uniformity of Blade Coating Machines in High-Load Electrode Slurry Coating
This article investigates how to optimize the dispersion uniformity of coatings by adjusting process parameters when using a blade coater to handle high-load electrode slurries.
Application of Laboratory Coating Machines in the Coating of Optical-Grade PET Anti-Reflection Coatings
This article discusses the application of laboratory coating machines in the preparation of anti-reflective coatings on optical-grade PET substrates. By controlling parameters such as coating speed and gap, the coating machine enables precise adjustment of coating thickness, thereby enhancing light transmittance and reducing reflection.
Application of Automatic Coating Machines in the Preparation of Ceramic Coatings for Lithium Battery Separators
This article introduces the application of automatic coating machines in the preparation of ceramic coatings for lithium battery separators. Traditional
Rotating Rubber Wheel Abrasion Tester for Determination of Coating Taber Abrasion Index
This article introduces the method for determining the Taber abrasion resistance index of coatings using a rotating rubber wheel abrasion tester.
Research on the Stepwise Curing Process of Coatings Using Multi-Stage Temperature Control Ovens
This article investigates a novel process for achieving stepwise curing of coatings using a multi-stage temperature-controlled oven.
Evaluation of Coating Adhesion Grade by Cross-Cut Tester Combined with Tape Method
This article introduces the method of evaluating coating adhesion using a paint film cross-cut tester combined with the tape method.
Cup Test Instrument for Coating Tests the Impact and Deformation Resistance of Coatings on Metal Substrates.
This article introduces how the coating cupping tester measures the resistance to stamping deformation of coatings on metal substrates.
T-bend tester for coatings is used to determine the T-bend grade of metal sheet coatings.
This article introduces how the T-bend tester for paint films is used to evaluate the flexibility and adhesion of coatings on metal sheet surfaces.