Alkyd Styrene Varnish AS40/52Х(S)
Alkyd Styrene Varnish AS40/52Х(S) is a product of copolymerization of polyunsaturated fatty acids with styrene (up to 40%) in organic solvent.
Application: It shall be used in formulas:
- chemical resistant and hammer enamels;
- fast-drying priming coats.
Table: Qualitative indices according to Technical Specification У 24.3-24010285-003:2007
|1||Colour (iodimetry scale), mg I2/100 cm3, not darker than
|2||Appearance||Transparent, some opalescence is allowed|
|3||Purity||Some mechanical inclusions are allowed|
|4||Relative viscosity at temperature /20±0.5/°С (viscosimeter ВЗ-246, nozzle diameter 4 mm), с||100 – 200|
|5||Weight fraction of nonvolatile matter, %||50 – 55|
|6||Acid value, mg, КОN/g, max.||12|
|7||Hardness of varnish film as to pendulum ТМЛ (type А), standard units, min.
· in one day
|8||Drying time to the point of 3, hours, at temperature (20±2) °С||2|