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标题: 拜耳水性树脂Bayhydrol A 2646 [打印本页]

作者: yuanhechemical 时间: 2012-7-3 10:58
标题: 拜耳水性树脂Bayhydrol A 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)

Other data*
Property                                  Value                      Unit of measurement       Method

Hydroxyl content,                         approx. 3.8                %                         internal method
(calculated on solid)***

Hydroxyl content,                         approx. 2.7                %                         internal method
(supply form)

Density at 20°C                         approx. 1.06                g/ml                      DIN EN ISO 2811-2

                                                                                 (R)
                                             *** w/o OH groups of the Dowanol PnB and triethanolamine

*These values provide general information and are not part of the product specification.

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Edition 2010-10-01                                                                                        Bayhydrol

Replaces edition dated 2009-04-08                                                                            Product Datasheet

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