Alkyd Silicon Varnish 580Si52N(X)

Technical Specifications У 24.3-24010285-003:2007

 

Alkyd Silicon Varnish 580Si52N(X) is a solution of alkyd modified by free fatty acids and silicon resin in organic solvents (white spirit, dearomatic white spirit D or their mixture with xylene).

Application: it shall be used in the formulations of high quality heat-resistant (up to 150°C) atmosphere resistant and chemical resistant enamels, as well as in compositions for hydrophobic protection of wood, stone and concrete.

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

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

30

 

80

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 Individual mechanical inclusions are allowed
4 Relative viscosity at temperature

/20±0.5/°С (viscosimeter ВЗ-246, nozzle diameter 4 mm), с

 

140 – 240

 

140 – 240

5 Weight fraction of nonvolatile matter, % 53 ± 2 53 ± 2
6 Acid value, mg, КОN/g, max. 12 12
7 Hardness of varnish film as to pendulum

ТМЛ (type А), standard units, min.

 

0.20

 

0.20

8 Drying time to the point of 3, hours, at temperature (20±2) °С  

8

 

8