Bayhydrol® A 2646
Solubility / thinnability The product is soluble in water.
Properties / Applicati*** 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 ***all 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 ***erage 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 ***all amounts of an aqueous 10 %
solution of Triethanolamine.
Contamination with certain bacteria, fungi or algae
may render the product unusable.