Leneta Form 2C Opacity Chart

Form 2C

Opacity Chart

194X260mm, black and white in half, upper black and lower white; surface film laminating, no fluorescent whitening agent, anti-penetration, Color uniform; 250 sheets per box; ASTM standard.

Leneta 2A/2C/2DXCovering force cardboardbeLeneta Concealment Cardboard in the United States is a popular model, especially 2DX Concealment Cardboard.Leneta The 2A/2C/2DX varnish covering force cardboard is black on the top and white on the bottom, and the Form 2C size is140 x 254mm.The use of 2C cover varnish covering power paper includes coatings, plastics and rubber, paints, pigments, hardware, instrumentation, printing, packaging, varnish, biology and other industries.

Leneta's seven advantages of covering force cardboard

Parameters

The choice of covering power cardboard is related to the coating process

Different paint formulations require test cardboards to have different solvent resistance, strong or weak. Different types of resins should be used with inadequate solvents. The polarity of a solvent dictates that its organic components can be activated more and less. In response to this problem, two types of test jams are available

Solve the problem of poor paint coverage

The color of the underlying surface can be seen through the paint film, which often occurs in hard-to-paint areas, such as underbody skidders or sharp corners.

1. Reasons for poor paint covering power

The thickness of the paint layer is not enough, and the paint has poor hiding power. The reasons for this are:

　　a) Improper spraying method.

　　b) Poor lighting conditions, narrow working space, difficult access to the spraying surface.

　　c) The paint is mixed unevenly.

　　d) The thickness of the paint layer is reduced due to excessive grinding and polishing.

2. How to prevent poor hiding power of paints and other coatings

　　a) Use the correct spraying method to ensure that the thickness of the paint film is appropriate, smooth and uniform.

　　b) The space of the spray booth should be suitable, the lighting conditions should be good, and special attention should be paid to the spraying quality of the inaccessible area when spraying.

　　c) The paint should be effectively mixed evenly.

　　d) It is forbidden to over-polish the paint film. Pay special attention to the corner areas.

3. Paint covering repair method 

Smooth out the defective area and repaint.

Measurement of hiding power

The basic consideration for the sale of architectural coatings is the hiding power and yield, which is the determination of the hiding power of the paint, that is, how many coatings need to be applied to a complete coating film, and how many barrels of paint are needed

Hiding power is a measure of the ability to cover.

Hiding power, also known as hiding rate (%) = Y black/Y white * 100 (%)

A 100% coverage rate is complete coverage, i.e. there is no difference between the black and white areas after application.

Directions:

1. Evenly coat paint and other coatings on the paint hiding power test paper according to the coating steps.

2. After the coating film is fully dried by air, the instrument is used for objective evaluation.

3. The value of the hiding force can be measured within 1 second and displayed automatically.

Paint hiding power test paper is not only limited to the measurement of the hiding power of paints and other coatings, but also the corresponding hiding power test method can also be applied to the detection of the hiding rate of transparent films and plastic products.

LENETA cardboard main types

Opacity test strips: Large patches of black and large patches of white are used to test the hiding power of the coating 

Penopac Strips: Permeability and hiding tests are performed simultaneously in one table 

Display: Uses a twill pattern to help show the hiding power of the coating 

Opacity display: A combination of large black, large white, and twill patterns 

Coating rate test strip: larger than other cards, used to measure the coating rate of coatings

Packing list：Encasement x1, Opacity Chart 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.