科思创一级代理商A2646源禾缘禾水性固化剂

Bayhydrol® A 2646

Solubility / thinnability    The product issoluble in water.

Properties / Applications    On account of itsoutstanding 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.

Storagetime             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 notnecessarily 

                        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 anyrepresentation 

                        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. Thiscontains 

                       information on labeling, transport and storage as well as

                       on handling, product safety and ecology.