拜耳水性聚氨酯树脂2646

Bayhydrol   A 2646

Type                                           Anionic polyacrylate dispersion

Form supplied                                                                     (R) 
                                               approx. 50 % in water/Dowanol   PnB/triethanolamine (46 : 1.1 : 2.9)

Uses                                           Waterborne, low VOC two-component polyurethane coatings in combination

                                               with aliphatic polyisocyanates.

Specification 
    Property                                   Value                        Unit of measurement          Method

    Non-volatile content                       48 - 51                      %                            DIN EN ISO 3251 
    (1 g/1 h/125 °C/convection oven)

    Viscosity at 23 °C                         1,000 - 3,500                mPa·s                        DIN EN ISO 3219/A.3 
                      -1 
    D = approx. 40 s

    pH                                         7 - 8                                                     DIN ISO 976 
    (1 : 4 in demineralised water)