JINGKELIAN QZP Black and white Covering power measuring board Suitable for the determination of Coating hiding power GB1726-88 standard

QZP

Covering power measuring board

Applicable to the determination of Coating hiding power. That is, on the surface, to achieve the minimum amount of paint that its base color is no longer present, expressed in g/m2. Graphic Checkerboard, graphic parameter 25 × 25mm ², 32 grids, Glass plate size 100 × 250mm, Glass plate thickness 1.2~ 2mm, execution standard GB1726-79

QZP black and white opacity test plate overview

The black and white grid hiding power board is manufactured in accordance with the provisions of the national standard GB1726-88 , and is suitable for the measurement of paint hiding power. That is, on the surface , the minimum amount of paint used to achieve its base color is no longer present, expressed in grams/m2.

Instructions for use

1. Wipe the surface of the black and white grid board clean.

2. Use an appropriate container to hold enough paint to be tested, weigh it with a balance together with a brush, and record the total weight (ie W1), accurate to 0.01g.

3. Apply the paint evenly on the black and white grid board with a brush until the grid can no longer be distinguished by visual inspection. Visual inspection is recommended to be carried out in a standard light box.

4. Weigh the remaining paint, together with the weight of the brush used (ie W2)

5. Calculate the hiding power "X" in g/m2. Formula: X=(W1-W2) ISx104-50(W1-W2) where: X=hiding power, unit g/m2. W1=original weight, unit g. W2= residual weight, unit g. S=painting area, unit Cm2.

6. Accuracy: The arithmetic mean of the two measurements shall prevail, but the difference between the two measured values shall not be >5%. If the difference between the two measured values is >5%, the data will be invalid and the test shall be repeated.

7. Precautions: Brushing should be done quickly and evenly, and paint should not be painted around the grille. When the paint to be tested is too thick to be painted evenly, the sample can be diluted, but the amount of diluent should be calculated according to the covering power. proportional deduction.

Detail image

Packing list：Glass plate x1, brush x1

[Note]Because the manufacturer's packaging may be updated or upgraded, the detailed packaging list shall be subject to the latest standard configuration of the manufacturer.