Scratch Method Adhesion Tester

The scratch adhesion tester uses a diamond indenter to move at a constant speed on the coating surface while applying an increasing load, detecting the critical force at which the coating peels off. It is used to evaluate the bonding strength between the coating and the substrate, and is suitable for quality control in industries such as paints, inks, and plastics.
Selection
When selecting, consider matching the maximum load range with the sample thickness, ensure that the scratch speed is adjustable, equip with an optical microscope to observe the scratch morphology, check the sensor accuracy, confirm compliance with ASTM D7027 or ISO 15184 standards, and select the fixture type based on the sample dimensions.

Terms

Standards

Instruments

Adopt the circular roller scratch method to evaluate the adhesion grade, describe the adjustable diaMeter of 0-10.5 mm, equipped with four weights to achieve 200-1000g loading, table Travel ≥ 80mm, manual operation is stable and reliable.

$ 412.00

The paint film adhesion was measured by the circular trace method, the drawing diaMeter was 0-10.5 mm, and the Working Travel was 80mm. The integrity of the paint film was evaluated according to seven grades, and the operation was simple and reliable.

$ 404.00

The adhesion was measured by the circular trace method, the drawing diaMeter was 0~ 10.5mm, and the Working Travel ≥ 80mm. The integrity of the paint film was evaluated by seven grades, and the operation was simple and conformed to the GB/T1720 standard.

$ 444.00

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

Using digital touch screen control, the test speed is adjustable from 0-40mm/s, the load range is 0-4000g, the minimum increment is 50g, and it is equipped with a variety of weights and special scribing needles to accurately determine the film scratch resistance performance.

$ 945.00

The paint film adhesion was measured by the circular trace method, the drawing diaMeter was 0~ 10.5mm, and the Working Travel was 80mm. The integrity of the paint film was evaluated according to seven grades, and the operation was simple and reliable.

$ 267.00

Rotation speed 80rpm, Working Travel 80mm, in line with international standards, to ensure accurate and reliable film adhesion assessment.

$ 373.00

The scribing needle is used to act vertically on the film, the load range is adjustable from 0-2000g, the minimum increment is 50g, and the diaMeter of the steel ball is 1mm, which can accurately determine the minimum weight required to cut the paint film.

$ 444.00

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

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 0.5mm tungsten carbide tip, the spherical test point can scratch 2000 90mm long scratches without damage after durability test, the design is comfortable and stable, and it is suitable for regular interval scratch operation in corrosion test.

$ 587.00

Adopting the principle of the inclined rolling ball method, the adhesion is measured by the short contact between the steel ball and the sample, the adjustment range of the tilt angle is 0-60 °, and the rolling ball of 1/32 to 1 inch is supported. The width of the test area is 80mm.

$ 338.00

Made of tungsten, with a total length of 17-18mm and a needle diaMeter of 1mm, it has excellent wear resistance performance and accurate scratch testing ability.

$ 280.00

Tack is good and non-degumming, adhesion reaches 7.6 N/cm, mass performance is stable, suitable for cross-cut adhesion testing, to ensure accurate film integrity assessment.

$ 174.00

The adhesive force of the tape is 4.3N/cm, and the principle of cross-cut method is adopted, which is suitable for adhesion testing. The performance is stable and non-degumming, and the test results are accurate and reliable.

$ 166.00

Articles

Selection Recommendations for Paint Film Cross-Cut Testers Based on Different Adhesion Testing Requirements
This article mainly discusses how to choose the appropriate paint film cross-cut tester based on different adhesion testing requirements.
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.
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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.
The sample for coating adhesion assessment is uniformly applied using a film applicator.
This article emphasizes that the use of a film applicator to prepare uniform coating samples is crucial, and it elaborates on how the working principle of the film applicator, coating speed, and other parameters affect the quality of the coating.
The adhesion tester employs a comparative analysis of methods including the cross-cut test, the scratch test, and the pull-off test.
This article compares three commonly used adhesion testing methods: the cross-cut test, the scratch test, and the pull-off test.
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This article introduces how to use a surface tensiometer to evaluate the wetting and spreading performance of resin liquids. Wetting and spreading affect the adhesion and appearance of products such as coatings and adhesives, and the process can be described by Young's equation and the spreading coefficient.
Cross-cut tester combined with adhesion test tape for evaluating coating peel-off.
The cross-cut test, paired with adhesion test tape, is a commonly used method for evaluating coating adhesion. It involves using a cross-cut knife to score a grid pattern on the coating surface, followed by the rapid peeling of specialized tape. The adhesion level is then assessed by observing the extent of coating detachment.
Circle method adhesion tester for evaluating the bonding strength of organic coatings
This article introduces how the circle method adhesion tester evaluates the bonding force between organic coatings and substrates. The instrument uses a stylus to draw a spiral line on the coating surface, and the adhesion level is assessed based on the number of circles before the coating begins to peel off. A smaller number indicates stronger adhesion.
Humidity and Heat Test Chamber for Evaluating Coating Performance under High Temperature and High Humidity Conditions
This article introduces how a humidity and heat test chamber is used to evaluate the performance of coatings in high-temperature and high-humidity environments. Coatings are widely used in industries such as automotive and electronics, but they are prone to issues like reduced adhesion and blistering under actual high-temperature and high-humidity conditions.
Laser particle size analyzer measures the particle size distribution of spray powder.
Laser particle size analyzers measure the particle size distribution of sprayed powder based on the principle of light scattering, which is critical for coating uniformity and adhesion. During measurement, the powder must be dispersed in a suitable medium to avoid agglomeration, and tests should be repeated to ensure accuracy.
Pull-off Adhesion Tester for Quantitative Measurement of Varnish Adhesion.
The pull-off adhesion tester quantitatively measures the adhesion strength between a varnish coating and the substrate by vertically pulling off a test column. It is essential to ensure proper substrate preparation, complete curing of the coating, and the use of a suitable adhesive during testing.
Circle Method Adhesion Tester for Evaluating the Adhesion of Paint Coatings by the Circular Rolling Line Method
The rolling circle method is a technique for testing the adhesion of paint coatings using a circle-drawing instrument. The instrument employs a fixed-load stylus to draw a continuous circular trace on the coating at a constant speed, and the adhesion level is assessed based on the peeling condition of the scratch.
Cross-cut Adhesion Tester for Evaluating Adhesion of Paint Coatings
This article introduces the cross-cut adhesion test, a common method for evaluating the adhesion of paint coatings.
Adhesion Tester Pull-Off Method for Determining Adhesion Strength of Varnish
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Comparison of the Three Principles of Paint Film Adhesion Testers
There are primarily three principles for paint film adhesion testers, and selection should be comprehensively considered based on the coating characteristics, substrate type, and testing purpose.