Glyphtal Varnish ГФ-046
Technical Specifications У 24.3-24010285-001:2002
Glyphtal Varnish ГФ-046 is a solution of glyphtal resin in white-spirit or mixute of white spirit and solvent. The resin is modified by semidrying oils mixture and rosin.
Application: it shall be used in formulations of paste pigments to produce enamels, priming coats, putties and special purpose varnishes.
Table: Qualitative indices according to Technical Specification У 24.3-24010285-001:2002
|№||Description||Requirements as to Technical Documentation|
|superior quality||first quality|
|1||Colour (iodimetry scale), mg I2/100 cm3, not darker than||80||160|
|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||80- 120||40 – 80|
|5||Weight fraction of nonvolatile matter, %||53 ± 2||52 ± 2|
|6||Acid value, mg, КОN/g, max.||15||18|
|7||Hardness of varnish film as to pendulum ТМЛ (type А), standard units, min.||0.11||0.11|
|8||Drying time to the point of 3, hours, max.
– at temperature (80±2) °С
– at temperature (20±2) °С