Cup Convexity Tester for Paint Film

The paint film cupping tester uniformly presses the back of the sample with a hemispherical punch, gradually causing the paint film to bulge until it cracks, and measures the bulge height. It is used to evaluate the ductility and crack resistance of coatings under unidirectional stretching, and is suitable for quality testing of paints and electrophoretic coatings on substrates such as metals and plastics.
Selection
When selecting, consider compliance with testing standards such as ISO1520 or GB/T9753; the measurement range should cover 0.1-20mm; the punch speed should be adjustable; it should be equipped with a standard edge clamping device and an illumination observation system; the substrate fixture must be compatible with common thicknesses; a digital display reading device is preferred to ensure accurate and intuitive results.
Control mode

Terms

Standards

Instruments

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

The drying process of paint film and putty film can be accurately measured by using circular track needle design, equipped with four different radius needle (R0.25/0.5/1.0/1 mm), and the track period is 24h/r.

$ 223.00

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

Impact height of 120 cm, hammer mass 1000g, no secondary rebound phenomenon after impact, punch diaMeter 16mm, can accurately determine the impact strength of the paint film.

$ 370.00

The pressure range of the probe is 50~ 250N, the diaMeter of the rubber probe is 40mm, and the degree of paint film chalking is evaluated by comparing the imprint of the photo paper with the standard sample, which is suitable for the detection of various environmental factors.

$ 444.00

It can measure the ability of the paint film to deform with the substrate without damage. It is equipped with a shaft Rod with a diaMeter of 50mm and 100mm.

$ 309.00

Using photo paper smooth surface combination technology, observing the imprint after applying a uniform load, the pressure range of the probe is 50-250N, and the diaMeter of the rubber probe is Φ 40mm, which can accurately evaluate the chalking grade of the paint film.

$ 433.00

Konig and Persoz swing bars are used, Konig swing period is 1.4s, Persoz swing period is 1s, and the number of swing angles is automatically recorded, which is suitable for accurate determination of paint film Hardness.

$ 662.00

Hand type easy to operate, load 1000g, standard 6B-6H pencil, suitable for film hardness testing, test temperature 23 +/- 2 ℃ and Humidity 50 +/- 5% environment.

$ 341.00

Using 200g weight and 1cm ² bottom area design, in line with GB/T 1728 standard, through the filter paper test method to accurately determine the film surface drying and practical drying time, easy to operate, reliable results.

$ 114.00

The stainless steel material is durable, the inner wall of the Cup body is smooth to ensure stable Flow velocity, the diaMeter of the flow hole is 2mm, and the viscosity range of 70cSt can be measured. Precision machining ensures measurement accuracy.

$ 190.00

Made of stainless steel, volume 100ml, lid with overflow hole to ensure accurate measurement, in line with international standards.

$ 127.00

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

Stainless steel material to ensure durability, 50ml standard volume design, cover with overflow holes for accurate measurement of liquid density, in line with international testing standards.

$ 124.00

Measure the surface of paint film and putty film and the actual drying time, in line with GB/T1728 standard, the weight of the Tester is 200g, and the weight of the bottom area is 1cm ².

$ 98.00

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.
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.
Cone Mandrel Bend Tester evaluates the flexibility of coatings under small-diameter bending.
The paint film conical bending tester simulates a gradually varying radius of curvature using a conical shaft to test the flexibility of coatings under small-diameter bending.
Coating Cylindrical Bending Tester for Determining the Resistance of Paint Films to Cylindrical Bending Cracking
This article introduces how the coating cylindrical bending tester measures the resistance of paint films to bending and cracking.
Selection of impact head diameter and drop hammer mass combination for paint film impact tester
When selecting the impactor diameter and drop hammer mass for a paint film impact tester, the key is to balance the impact energy and pressure.
Pencil Hardness Plan Outstanding Paint Film Pencil Hardness Grade
The pencil hardness test is a method for evaluating the scratch resistance of paint films. It involves using a series of pencils with known hardness levels to scratch the coated surface under fixed conditions. The hardness grade of the coating is determined by observing whether permanent scratches are produced.
Cylindrical Mandrel Bending Tester for Detecting Flexibility of Coatings
This article introduces how the cylindrical shaft bending tester detects the flexibility of paints. Flexibility refers to the ability of the paint film to resist cracking when the substrate is bent.
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.
Usage of Paint Film Solvent Rub Tester in Rapid Detection of Curing Degree
The paint film solvent resistance tester rapidly evaluates the degree of paint film curing by simulating solvent wiping. Its principle is that a fully cured paint film has a high cross-linking density, enabling it to resist solvent dissolution.
Application of Film Pencil Hardness Tester in Coating Scratch Resistance Testing
The paint film pencil hardness tester is an instrument used to evaluate the scratch resistance of coatings. It works by scratching the surface of the coating with a pencil of known hardness under a fixed load, and then assessing the hardness grade based on whether scratches are produced.
Use of pendulum hardness tester for paint film curing degree assessment in the laboratory.
The pendulum hardness tester evaluates the hardness of a paint film by measuring the decay time of a pendulum swinging on the surface of the film, where a longer time indicates a harder film and a higher degree of curing.
Testing principle of the mandrel bending method for paint film flexibility tester
The shaft-rod bending method is a common technique for testing the flexibility of paint films. It involves bending a test panel coated with the paint film over shafts of different diameters to simulate the deformation of the coating under stress.
Preparation of Paint Film Test Panels
The standardized preparation of paint film test panels is fundamental for accurately assessing the performance of paint films. The entire process includes key steps such as substrate selection and pretreatment, paint preparation, coating, drying and curing, thickness measurement, and curing.
Key Operational Points and Influencing Factors of Pencil Hardness Method for Determining Coating Film Hardness
The pencil hardness test is a method used to evaluate the scratch resistance of a coating by making marks on the paint film with pencils of known hardness. During the operation, a uniformly cured sample is prepared, and calibrated pencils are used to make marks at a 45-degree angle with a fixed force, aiming to identify the highest hardness grade that does not scratch through the paint film.