Alkyd Urethane Varnish АU5(AL)-52W

Technical Specifications У 24.3-24010285-003:2007


Alkyd Urethane Varnish АU5(AL)-52W is a solution in white spirit of alkyd varnish. The solution is modified by sunflower oil or soyabean oil and pentaerythritol, as well as aliphatic diisocyanate.

Application: Varnishes, containing aromatic isocyanates, form coatings with high hardness, wear resistance, water- and chemical resistance, as well as good adhesion. They have high lightfastness. They shall be used in the formulations of fast-drying enamels used outdoor.


Table: Qualitative indices according to Technical Specification У 24.3-24010285-003:2007

Description Requirements as to Technical Documentation
1 Colour (iodimetry scale), mg I2/100 cm3, not darker than

·superior quality

·first quality




2 Appearance Transparent, some opalescence is allowed
3 Purity Varnish coat, applied on glass plate, shall be transparent without any mechanical inclusions and small extrinsic particles
4 Relative viscosity at temperature /20±0.5/°С (viscosimeter ВЗ-246, nozzle diameter 4 mm), с 140 – 240
5 Weight fraction of nonvolatile matter, % 50 – 55
6 Hardness of varnish film as to pendulum ТМЛ (type А), standard units, min.

·in one day

·in 7 days




7 Drying time to the point of 3, hours, max. at temperature (20±2) °С 6