VISUAL METHOD OF THE SPREADING CAPACITY DETERMINATION
Rutile pigment Titanium.

1.1. The essence of the method
The method involves applying the layers of the pigment paste onto the contrast paper in the form of a chess board

until the contours of black and white contrast paper become invisible.

The method is intended to determine the spreading capacity of the pigments in undried coatings.

1.2. Purpose of the method
To conduct visual tests to compare the spreading capacity of the white rutile pigment Titanium with the popular titanium dioxide brands.

1.3. Equipment and materials:

- Rutile pigment T110,T220,T770,T990
- Titanium dioxide Tiox 280, BLR 699
- Printed lacquer PRINTLAC HIGH GLOSS 10L9500
- Baker applicator which allows to apply the layers of paint material to the paper with the thickness of each layer no more than 20 micrometers;
- Contrast map Leneta Form N9A
- Analytical balance with a weighing error not more than 0,0002 g.
- Graduated ware

1.4. Testing
To determine the spreading capacity of the rutile pigment, it is necessary to dilute it with the lacquer till the working viscosity. Pigments are ground beforehand and mixed with the lacquer to obtain a pigment paste, in a ratio of 2:1

After that one layer of pigment paste is applied onto a Leneta contrast map. Then,  in diffused daylight, we observe to what extent white and black fields illuminate. If the fields are illuminated, new layers of material are applied onto the map sequentially, until the difference between white and black fields disappears completely.

Visual results of tests for the spreading capacity of the rutile pigment Titanium with respect to titanium dioxide are shown hereinafter.

1.5. The tests showed that the rutile pigment Titanium can effectively replace the traditional brands of the titanium dioxide without losing the quality of the final product, while reducing the cost of production.

Correspondence of brands to their analogues:

T110 - analogue of Tiox 280; T220 - analogue of BLR 699; T770/1 - analogue of BLR 895; T990 - analogue of Dupont R-706.

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