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Polyurethane lacquer UR-KB-2

Name of product

GOST (state standard) or TU (factory standard)

Field of application

Appearance and quality data

Polyurethane lacquer UR-KB-2

TU 2311-031-05761689-99

Applied as a mordant and for lacquering of genuine leather in industrial conditions.

Mixture ratio of component А to hardener is 1: 0.3.

Hardening agent - triisocyanate ТТ-75.

1. Transparent homogenous solution without mechanical impurities.

2. Appearance of film – after drying up the film must be plain, homogenous, and glossy, without wrinkles and mechanical impurities.

3. Relative viscosity by viscosimeter type ВЗ-246 with nozzle diameter of 4 mm at the temperature (20,0±0,5) °С, s, in the range 20-35.

4. Mass concentration of fixed substances, %, in the range 45-60.

5. Drying up time of lacquer to 3 degree at the temperature (50±5) °С, h, max 8.

6. Gloss of coating by photoelectric glossmeter type FB-2, %, min 100.

7. Film hardness by pendulum instrument, conventional units, min 0,4.

8. Resistance of coating to static action of water, h, min:

а) at the temperature (20± 2) °С, - 24,

б) at the temperature (85± 5) °С, - 0,5.

9. Pot life of lacquer after mixture of the components at the temperature (20± 2) °С, h, min 24.

10. Ultimate tension of the film, MPa, min 65.

11. Film elongation at break, %, min 180.


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