Circular Adhesion Tester

The circle adhesion tester draws circular scratches on the coating surface by rotating a scribing needle, and evaluates the bonding strength between the coating and the substrate based on the scratch morphology. It is used for adhesion testing in industries such as coatings and inks, helping to assess the durability of coatings.
Selection
When selecting, consider matching the hardness range of the material being tested with the instrument's measurement range, check if the stylus specifications meet standards, confirm the accuracy of rotational speed control, examine the adaptability of the clamping fixtures, verify standard certifications, and evaluate the ease of operation and data recording functions.
Tooth spacing
Number of teeth
Test substrate
Measured film thickness
Number of blades
Applicable standard
Miscellaneous

Terms

Standards

Instruments

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

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 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 circular cutter is designed with eight incisions and 1mm spacing between the teeth. It is suitable for strong substrate adhesion testing with a Coating thickness of less than 60 microns and meets the requirements of ISO 2409.

$ 860.00

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

Using electric pressure system and circular pressing operation mode, printing pressure 0-4mm, speed 0-100 Meters, adjustable scraper pressure and speed, support low accuracy overprinting and Color detection.

$ 6020.00

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%, 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 three swirl/spin cutter heads, the tooth spacing is 1mm, 2mm and 3mm respectively, and it is designed according to ISO2409 standard for accurate evaluation of coating adhesion performance.

$ 183.00

Using irreversible discoloration technology, white turns black after overheating while displaying numbers, Measuring temperature 75 ° C, circular patch design is easy to observe temperature changes.

$ 88.00

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

It adopts 11-tooth cutter design, provides four spacing options from 1mm to 3mm, and is suitable for paint film adhesion testing with a thickness of less than 250mm. The operation is simple and the results are accurate and reliable.

$ 146.00

Articles

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.
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.
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.
Operation Specification for Circular Scratch Adhesion Tester
The circle method adhesion tester is used to evaluate the adhesion strength between coatings and substrates. Before operation, it is necessary to inspect the instrument, prepare samples, and control the ambient temperature and humidity. During testing, the sample should be secured, appropriate load and scratch spacing should be selected, and the stylus should be moved at a constant speed to create a circular scratch.
Correlation of Evaluation Results Among Circle Method, Grid Method, and Pull-Off Method in Adhesion Assessment
This article mainly discusses three common methods used in coating adhesion testing: the cross-cut test, the scratch test, and the pull-off test. The choice of method should be based on the specific characteristics of the coating and the testing objectives. Sometimes, combining multiple methods can provide a more comprehensive evaluation of adhesion performance.