Overview
NW-3 is a LENETA brand Paint Chart, specially designed for hiding power testing. The product is pure white cardboard, Dimensions are 140x140mm, Film thickness is 0.35mm, Encasement 500 sheets per box.
Features
1. Pure white design, reflectance Y value not less than 80%, suitable for hiding power test.
2. Uniform specifications, size is 140x140mm, Film thickness 0.35mm, easy to standardize operation.
3. Encasement is large, 500 sheets per box, 6 boxes per box, to meet the needs of batch testing.
4. Grammage of the paper is 308 g/m ² and the texture is stable.
Principle
NW-3 Opacity Chart is used as a standardized white test substrate, and its pure white surface with high reflectance is used for the Spreader coating to be tested. The covering ability of the coating is evaluated by comparing the degree of covering of the white substrate after the Spreader coating.
Applications
Paint hiding power test
Standards
The data did not mention specific compliance criteria.
Steps
The information does not provide specific operation steps.
Notice
* The main paint composition of the paper is inorganic matter (Calcium Carbonate, Kaolin, Titanium Dioxide, etc.), accounting for more than 92%, and contains starch, trace latex gluing agent and Miscellaneous trace additives (such as ammonia, Defoamer, etc.).
This product is a test consumable, and the specific test method should refer to the relevant standards or instrument operating procedures.
