Opacity chart for paint film

The paint film opacity paper is a standard black-and-white card used to determine the hiding power of coatings. The principle involves evenly applying the coating over the black-and-white grid areas and assessing the degree to which the grid is obscured to evaluate the coating's hiding performance. Its purpose is to provide a reference for the opacity effect in the production and application of coatings, and it is used in processes such as coating formulation adjustments and quality control.
Selection
When selecting paper for measuring paint film hiding power, attention should be paid to the flatness of the paper, with clear and distinct boundaries between the black and white grids. The paper should have moderate thickness and uniform surface ink absorption. The black-and-white contrast should meet standard requirements, and the material should be resistant to deformation. The specifications and dimensions should match the testing needs to ensure comparability of the test results.

Terms

Standards

Instruments

Using film lamination technology, with excellent solvent and chemical resistance, paper Film thickness 0.29mm, surface Laminating to ensure Spreader uniformity, with annotation section for easy recording of test data.

$ 306.00

Using film lamination technology, with 0.29mm paper Film thickness and surface Laminating, providing uniform film Spreader and solvent chemical resistance, easy hiding power, Opacity test.

$ 618.00

Using film lamination technology, it has excellent solvent and chemical resistance, ensuring uniform film Spreader, paper Film thickness 0.29mm, surface Laminating enhanced durability, suitable for a variety of test environments.

$ 443.00

Spreader uniformity is ensured by film lamination technology, with 0.29mm paper Film thickness and solvent resistance, and each cardboard has a dedicated annotation area for recording test data.

$ 388.00

Using film lamination technology, with excellent solvent resistance and chemical resistance, paper Film thickness 0.29mm and no fluorescent whitening agent, Laminating surface to ensure Spreader uniformity.

$ 356.00

Using film lamination technology, with excellent solvent and chemical resistance, paper Film thickness 0.29mm and no fluorescent whitening agent, ensure Spreader uniformity and with annotation section for easy recording.

$ 509.00

Using film lamination process, with solvent resistance and chemical resistance, paper Film thickness 0.29mm, Laminating to ensure uniformity of Spreader, with annotation section for easy recording of test information.

$ 244.00

Using film lamination technology, with excellent solvent and chemical resistance, paper Film thickness 0.29mm and no fluorescent whitening agent to ensure accurate and reliable test results.

$ 635.00

Using film lamination technology, with excellent chemical resistance and uniform Spreader effect, paper Film thickness 0.29mm and surface Laminating, with a dedicated annotation area for easy recording of test data.

$ 318.00

Using film lamination technology, with excellent solvent and chemical resistance, paper Film thickness 0.29mm and no fluorescent whitening agent to ensure Spreader uniformity and test accuracy.

$ 391.00

Laminating-free black and white half design, size 98 * 152mm, Encasement specification 100 sheets/bag, suitable for Coating inks film hiding power performance detection experiment.

$ 89.00

Using film lamination treatment, with excellent solvent and chemical resistance, paper Film thickness 0.29mm and surface Laminating to ensure Spreader uniformity and test accuracy.

$ 635.00

Black and white half design, size 98x152mm, ASTM standard, can accurately measure Coating hiding power, support transparent film and plastic pRoducts hiding ratio detection.

$ 267.00

Using sealed surface preparation, excellent waterproof and anti-Curling performance, specification 200x125mm, black and white checkerboard design is convenient for fast measurement of hiding power values within 1 second.

$ 162.00

Pure white paper surface sealed, size 194x286mm, ASTM standard, support hiding power measurement and levelling sag test, matching Applicator Rod can obtain uniform coating results.

$ 307.00

Articles

Spectrophotometer measures ink spectral reflectance and opacity.
This article introduces how to measure the hiding power of ink using a spectrophotometer. The instrument irradiates the ink sample, measures its reflectance within the visible light spectrum, and calculates the hiding power using the Kubelka-Munk model.
The combination of hiding power chart paper and a spectrophotometer enables the digital evaluation of hiding power.
This article introduces how to combine hiding power cards with spectrophotometers to achieve digital assessment of hiding power.
Technical Details of Measuring Paint Contrast Ratio Using Black-and-White Checkerboard Method with Hiding Power Card
This article introduces a method for measuring the hiding power of coatings using black and white checkerboard paper.
Reflectometer for measuring the hiding power of colored paint coatings
This article introduces the method of using a reflectometer to measure the hiding power of colored paint coatings. Hiding power refers to the ability of a coating to conceal differences in the underlying color. Traditional methods relying on visual judgment are prone to subjective influences, while instrumental measurement offers greater objectivity and accuracy.
Opacity tester evaluates the covering power of coatings.
The hiding power tester is a professional instrument used to evaluate the covering ability of coatings. It quantifies the hiding effect by measuring the reflectance ratio (contrast ratio) of the coating film on black and white substrates.
Black-and-white checkerboard and reflectometer for measuring pigment hiding power
This article introduces two methods for measuring the hiding power of pigments: the black-and-white checkerboard method and the reflectometer method.
Covering Power Evaluation—Mass per Unit Area Method vs. Reflectance Comparison Method
This article primarily discusses two common methods for evaluating hiding power in industries such as coatings and inks: the mass per unit area method and the reflectance contrast method.
The role of black-and-white test paper in contrast ratio measurement
Black-and-white test paper plays a key role in determining the contrast ratio of coating materials. The contrast ratio is an important indicator of hiding power, calculated by comparing the reflectance of the coating on black and white substrates.
Hiding power measurement: Equivalence of mass per unit area method and reflectance contrast method.
Covering power is a key indicator for evaluating the optical performance of coating materials such as paints, inks, and pigments, reflecting the material's ability to conceal the color of the substrate. Accurate determination of covering power is crucial in industrial quality control and research and development.