Octa-Soligen 203
Borchers
干燥剂 >> 联合干燥剂
Drier / Siccative >> Combination drier
Octa-Soligen® 203 14
Lead-free combination drier for paint systems
Description
Growing concern for the environment has increased demands for lead-free driers to be used in artists' paints, DIY paints and paints for use on toys. Extensive trials have resulted in the development of Octa-Soligen® 203, a drier combination as a substitute for driers containing lead, which is universally usable and possesses exzellent initial- and through-drying properties.
Properties
Cobalt effects rapid surface drying. In conjunction with cobalt, barium acts like lead and improves through-drying. At the same time it prevents the adsorption of primary driers, thereby increasing drier stability during long-term storage. Zinc prolongs the open time of the paint film, thereby promoting uniform through-drying and preventing wrinkling and skinning.
The balanced ratio of the various metal contents of Octa-Soligen® 203 yields optimum results in respect of initial- and through-drying. As a result of the wetting action of the barium, this drier possesses exzellent drier stability, rendering use of additional drier stabilisers unnecessary except in the case of critical pigment Systems.
Octa-Soligen® 203 is of low viscosity, readily meterable, has a long shelf-life and is particularly suitable for white and light-coloured paint systems.
Paints incorporating Octa-Soligen® 203 are characterised by better drying times even under adverse atmospheric conditions.
Applications
Octa-Soligen® 203 can be used in all binder systems which dry by oxidation and is particularly suitable for white and light-coloured paints. Cloudiness and precipitation do not occur.
Mixing and addition rate
Experiments have shown that the necessary addition rate of Octa-Soligen® 203 should be between 2.0 and 5% relative to the binder, depending on the binder and the pigment system. This is equivalent to a cobalt content of 0.024 to 0.06%.
When using pigments which retard the drying process such as carbon black or toluidine red, a higher addition rate or special stabilisation may be necessary.
Octa-Soligen® Barium 12.5 or Octa-Soligen® Calcium 10 are suitable for this purpose. In paint systems which already contain zinc compounds (e.g. zinc-treated titanium dioxide), the zinc in Octa-Soligen® 203 may retard drying.
Addition of Octa-Soligen® Zirconium 6 brings about an improvement in many such cases.
lt may still be necessary to switch to a different drier system, however, in this case we recommend trials with Octa-Soligen® 173.
Lead-free, drier combination as a substitute for driers containing lead, which is universally usable and possesses exzellent initial- and through-drying properties. Cobalt effects rapid surface drying. In conjunction with cobalt, barium acts like lead and improves through-drying. Prevents the adsorption of primary driers, thereby increasing drier stability during long-term storage. Zinc prolongs the open time of the paint film, thereby promoting uniform through-drying and preventing wrinkling and skinning. The balanced ratio of the various metal contents yields optimum results in respect of initial- and through-drying. As a result of the wetting action of the barium, this drier possesses exzellent drier stability, rendering use of additional drier stabilisers unnecessary except in the case of critical pigment systems. Particularly suitable for white and light-coloured paint systems. Can be used in all binder systems which dry by oxidation and is particularly suitable for white and light-coloured paints. Cloudiness and precipitation do not occur.
Recommended usage level: 2.0 and 5% relative to the binder, depending on the binder and the pigment system. This is equivalent to a cobalt content of 0.024 to 0.06%.