Urethane Resin UR(AR)-60N(W)
Technical Specifications У 24.3-24010285-003:2007
Urethane Resin UR(AR)-60N(W) is a solution in white spirit of alkyd varnish. The solution is modified sunflower oil or soyabean oil and pentaerythritol, as well as aromatic diisocyanate.
Application: Varnishes, containing aromatic isocyanates, form coatings with high hardness, wearresistance, water- and atmosphere resistance, as well as good adhesion. They shall be used in the formulations of parquet varnishes to paint floors with high operating load as well as yacht varnishes using ultraviolet stabilizers.
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
|2||Appearance||Transparent, some opalescence is allowed|
|3||Relative viscosity at temperature /20±0.5/°С (viscosimeter ВЗ-246, nozzle diameter 6 mm), с||
|4||Weight fraction of nonvolatile matter, %||60|
|5||Hardness of varnish film as to pendulum
ТМЛ (type А), standard units, min.
·in one day
·in 7 days
|6||Drying time to the point of 3, hours, max. at temperature (20±2) °С||4|