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科思创&纽佩斯溶剂型产品
MDI固化剂
MDI预聚物
TDI固化剂
TDI和HDI混聚固化剂
TDI预聚物
HDI固化剂
IPDI固化剂
弹性固化剂
封闭型固化剂
弹性树脂
自交联树脂
聚酯树脂
聚天门冬氨酸脂
羟基丙烯酸树脂
科思创原拜耳水性固化剂
常温固化剂
封闭型固化剂
科思创原拜耳水性聚氨酯
单组份工业漆
双组份工业漆
烤漆
单组份塑料漆
双组分塑料漆
柔感涂料
建筑地坪漆
建筑墙面漆
单组份木器漆
双组份木器漆
车辆漆
亮光纸张光油
高弹纺织皮革
中弹纺织皮革
胶黏剂
油墨
纽佩斯树脂
纽佩斯树脂
水性哑光树脂
水性哑光树脂
聚氨酯微球
聚氨酯微球
源禾水性新品
柔感涂料
哑光纺织皮革
哑光纸张光油
哑光烟包光油
高弹纺织皮革
中弹纺织皮革
潜伏性固化剂
水性增稠剂
水性增稠剂
优惠促销产品
优惠促销产品
手感助剂
手感助剂-PU弹性粉
水性润湿分散剂
水性润湿分散剂
水性防堵网助剂
水性防堵网助剂
高泰增稠剂
高泰增稠剂
哑光油
哑光油

建筑地坪漆

Bayhydrol A 2646

Bayhydrol A 2646

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  • Bayhydrol? A 2646

    Type                  Anionic polyacrylate dispersion
    Form supplied         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
    (1 g/1 h/125 °C/convection oven)
                           48 - 51           %                  DIN EN ISO 3251
    Viscosity at 23 °C
    D = approx. 40 s-1
                          1,000 - 3,500     mPa·s              DIN EN ISO 3219/A.3
    pH
    (1 : 4 in demineralised water)
                          7 - 8                                 DIN ISO 976


    Other data*
    Property               Value          Unit of measurement         Method
    Hydroxyl content,
    (calculated on solid)***
                           approx. 3.8       %                   internal method
    Hydroxyl content,
    (supply form)
                           approx. 2.7       %                   internal method
    Density at 20°C       approx. 1.06     g/ml                 DIN EN ISO 2811-2

                           *** w/o OH groups of the Dowanol? PnB and triethanolamine


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

    specification.



  • Bayhydrol? A 2646

    Solubility / thinnability    The product is soluble in water.

    Properties / Applications    On account of its outstanding mechanical and

                                 chemical resistance, the product is particularly

                                 suitable for the formulation of hard, high-gloss

                                 sealers for mineral substrates and reactive resins

                                 (EP, PUR). Furthermore, excellent accentuation of

                                 the grain of the substrate (e.g. colored coatings)

                                 is achieved.
                                 The binder can also be used for the formulation of

                                 high-grade low VOC coatings for use on substrates

                                 such as wood, metal, plastic, etc.
                                 The product can also be combined with other water-

                                 reducible binders. On account of the many potential

                                 co-reactants, compatibility testing should always

                                 be carried out.
                                 The high reactivity enables short drying times,

                                 which contribute to enhanced productivity.
                                 The viscosity of the product is largely governed by

                                 the pH. As the pH may decrease during storage, a

                                 decrease in viscosity is also to be expected. The
                                 viscosity can be restored to its original value by

                                 the addition of small amounts of triethanol amine.
                                 Dowanol? PnB and triethanolamine are OH-functional

                                 cosolvents/amines that react with isocyanates. They

                                 are therefore reactive thinners and not

                                 VOC-relevant pursuant to the Decopaint Directive

                                  2004-42-EC.


    Storage                      - Storage in original sealed Bayer MaterialScience

                                  containers.
                                 - Recommended storage temperature: > 0 - 30 °C.
                                 - Protect from frost, heat and foreign material.

                                   General information: The product is sensitive to

                                   frost. Prolonged freezing can damage the product

                               irreversibly. Prolonged storage at higher temperatures
                               may result in a decrease of viscosity and/or an

                               increase of average particle size, possibly resulting

                               in sedimentation or coagulation.
                               The viscosity of the product is largely governed by

                               the pH. As the pH may decrease during storage, a

                               decrease in viscosity is also to be expected. The
                               viscosity can be adjusted to its original value by

                               the addition of small amounts of an aqueous 10 %

                               solution of Triethanolamine.
                               Contamination with certain bacteria, fungi or algae

                               may render the product unusable.


    Storage time              Bayer MaterialScience represents that, for a period

                              of six months following the day of shipment as stated

                              in the respective transport documents, the product

                              will meet the specifications or values set forth in

                              section "specifications or characteristic data" above,

                              what ever is applicable, provided that the product

                              is stored in full compliance with the storage

                              conditions set forth in and referenced under section

                              "storage" above and is otherwise handled appropriately.
                             The lapse of the six months period does not necessarily

                             mean that the product no longer meets specifications or

                             the set values. However, prior to using said product,

                             Bayer MaterialScience recommends to test such a product

                             if it still meets the specifications or the set values.

                             Bayer MaterialScience does not make any representation

                             regarding the product after the lapse of the six

                             months period and Bayer MaterialScience shall not be

                             responsible or liable in any way for the product failing

                             to meet specifications or the set values after the

                             lapse of the six months period.


    Safety                  Hazards identification
                            Not classified as a hazardous product as per Council

                            Directive 2006/121/EC or 1999/45/EC.
                            The safety data sheet should be observed. This contains

                            information on labeling, transport and storage as well as

                            on handling, product safety and ecology.



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