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Polyurethane lacquer UR-K

Name of product

GOST (state standard) or TU (factory standard)

Field of application

Appearance and quality data

Polyurethane lacquer UR-K

TU 113-00-38-139-95

Designed for coating of wooden articles and metal structures. Mixture ratio of component А to hardener is 1.6:1. Hardening agent – polyisocyanate.

1. Transparent homogenous substance coloured from yellow to brown, without mechanical impurities.

2. 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 10 –30.

3. Mass concentration of fixed substances, %, in the range 70-78.

4. Pot life of lacquer after mixture of the components at the temperature (20±5) °С, min 2,5.

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

6. Drying up time of lacquer to 3 degree at the temperature (20±2) °С, h, max 5.

7. Gloss of coating by photoelectric glossmeter type FB-2, %, min 65.

8. Film hardness by pendulum instrument M-3, conventional units, min 0,5.

9. Thermal endurance of the film at the temperature (80 ± 2) °С, m, min 30.

10. Resistance of coating to action of water at the temperature (20±5) °С, h, min 24.


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