Circle Method Coating Adhesion Tester

The circle method coating adhesion tester uses a rotating stylus to draw circles on the coating surface while applying an increasing load, and observes the peeling of the coating. The principle is based on mechanically scratching the coating to disrupt its bond with the substrate, and its purpose is to evaluate the adhesion strength of the coating. It is applied in industries such as paints and inks to test the bonding performance of coatings on substrates, ensuring product durability.
Selection
When selecting a circle method coating adhesion tester, consider the load range and accuracy, matching them with the coating type and thickness. Check the instrument's stability and ease of operation to ensure compliance with industry standards such as ASTM D2197. Evaluate the supplier's service and support, and determine the model based on budget and actual testing needs to avoid over-specification.
Measurement method

Terms

Standards

Instruments

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

Electric Circle-drawing is used to ensure uniform speed and constant strength, Travel 20-80mm adjustable, Rotation speed 10-120 +/- 1 rpm adjustable, equipped with automatic judgment prompts and precision dual rail system to improve test Repeatability and data accuracy.

$ 1397.00

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

$ 373.00

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

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

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

Made of stainless steel, the cutter tooth spacing is 1-3mm, the cut mark length is 35mm, and the coating is cut through the grid pattern, and the adhesion effect is evaluated according to the six-level classification, which is suitable for a variety of surface tests.

$ 178.00

Hydraulic system measurement coating adhesion, accuracy control within +/- 1% full scale, optional 10mm to 50mm more than the kit size, self-positioning characteristics to ensure smooth rough surface measurement results accurate and reliable.

$ 1585.00

Hydraulic system measurement coating adhesion, accuracy control within +/- 1% full scale, equipped with multi-function digital display, can automatically calculate different kit size results, self-positioning kit to adapt to various surfaces.

$ 1468.00

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

Hydraulic system for coating detachment measurement, equipped with multi-function digital display, Measurement accuracy +/- 1% F.S., optional 10mm to 50mm spindle, self-positioning characteristics to adapt to different surfaces.

$ 1401.00

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

Hydraulic system measurement coating adhesion, accuracy control within +/- 1%, equipped with self-positioning kit to ensure smooth and rough surface measurement results consistent, optional 10mm to 50mm variety of kit specifications.

$ 1274.00

Equipped with a 20mm kit and trimmer, the range covers 0-20MPa, and precise positioning is achieved through a transparent sleeve, specially designed for high viscosity coating adhesion testing.

$ 590.00

The hand wheel drive is used to realize the synchronization of the table movement and the needle drawing circle, the drawing diaMeter can be adjusted from 0 to 10.5mm, and it is equipped with 808 stylus and graded weight.

$ 267.00

Articles

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This article mainly discusses how to choose the appropriate paint film cross-cut tester based on different adhesion testing requirements.
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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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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.
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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
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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
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