Black and white drawdown paper for paint.

The black and white drawdown chart is used to test the hiding power of paints. The principle involves applying the paint onto a paper with alternating black and white squares and observing the extent to which these squares are concealed to evaluate the hiding performance. Its purpose is to quantify the hiding effect of paints, and it is applied in quality control during paint production and performance verification before application.
Selection
When selecting, pay attention to the flatness of the paper substrate and the clarity of black and white grid boundaries. Choose an appropriate paper thickness based on the viscosity of the coating to be tested, and use solvent-resistant paper for solvent-based coatings. Consider the impact of temperature and humidity in the testing environment on paper deformation, and match the specifications of the coating tool.

Instruments

Made of non-fluorescent paper, does not contain Fluorescent Whitening Agent, the black part reflectance is less than 1, the white part reflectance is 80 +/- 2, the surface is smooth and anti-Curl, and the test area is 0.1 square Meters.

$ 91.00

Black part reflectance less than 1, white part reflectance 80 +/- 2, no Laminating design to enhance paint wettability, avoid checking or cissing, suitable for specific spreading rate brushing tests.

$ 88.00

Black part reflectance less than 1, white part reflectance 80 +/- 2, Laminating design enhanced anti-Curl ability, suitable for spreading rate testing, area of 0.1 square Meters.

$ 89.00

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

Made of high-quality non-fluorescent paper, does not contain Fluorescent Whitening Agent, black reflectance < 1, white reflectance 80 +/- 2, Laminating design enhances anti-Curl ability, test area of 0.1 square Meters.

$ 89.00

After overheating, the white display window shows white characters on a black background, and the frame adopts regression directional reflection technology to facilitate low-light long-distance inspection. The size is 25 * 25mm, and the discoloration method is irreversible, which is suitable for indoor and outdoor environments.

$ 90.00

After overheating, the white display window shows white characters on a black background, and the frame adopts regression directional reflection technology to facilitate long-distance inspection of low light. The size is 25 * 25mm, and the discoloration method is irreversible.

$ 90.00

Black and white half design is convenient for hiding ratio calculation, surface sealing treatment improves waterproof performance, 200x125mm specification ensures test standardization, and effectively prevents paper Curl from affecting Measurement accuracy.

$ 162.00

Using non-fluorescent paper substrate, white reflectance 80 +/- 2, black reflectance < 1, Laminating design enhances Curl resistance, 0.1 square Meter standard area is suitable for spreading rate testing.

$ 91.00

White part reflectance 80 +/- 2, non-Laminating design to enhance paint wettability, test area of 0.1 square Meters, Curl and checking resistance, suitable for brushing applications.

$ 88.00

Using irreversible discoloration technology, white turns black after overheating, temperature Measurement accuracy 100 ℃, Dimensions 22 * 22mm, each piece is a single temperature point.

$ 101.00

Using 140 * 250mm black and white half design, no Laminating surface to ensure detection accuracy, suitable for hiding power performance testing, Encasement specification of 100 sheets/pack for experimental use.

$ 90.00

Black and white half design is convenient for hiding power comparison, 140 * 250mm standard size is suitable for experimental requirements, surface Laminating enhances durability, and 100 sheets per pack meets batch testing.

$ 90.00

Temperature-sensitive discoloration paint Color changes from white to transparent after overheating, discoloration is irreversible, Measuring temperature 50 ℃, suitable for rough oil surface, Net weight of plastic bottle 100 grams.

$ 131.00

Using 25 × 25mm ² 32 grid design, Glass plate thickness 1.2~ 2mm, through the standard Checkerboard test can accurately calculate the Coating hiding power, easy and fast operation.

$ 128.00