Special combination drier based on Cobalt, Barium and Zinc for oxidatively drying paint systems.

  • Characteristic Data

    AppearanceClear, low-viscous, violet liquid
    Metal contentBa: 7.00 – 7.40 %

    Co: 1.10 – 1.30 %

    Zn: 3.10 – 3.30 %

    Total: 11.20 – 12.00 %

    DIN 55901 DIN 55901 DIN 55901



    Non-volatile content46 – 56 %ISO 3251 (2g, 3h, 105 °C)
    Density0.950 – 0.990 g/cm3DIN 51757 (20 °C)
    Viscosity35 – 145 mPa·sISO 3219 (A) (20 °C)
    SolventWhite-Spirit containing max. 1% aromatics

  • Properties

    Cobalt effects rapid surface drying. In conjunction with cobalt, barium improves through-drying. At the same time it prevents the adsorption of primary drier, 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 excellent 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 meter able, has a long shelf-life and is particularly suitable for white and light-colored 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-colored paints. Cloudiness and precipitation do not occur.

  • Dosage

    Experiments have shown that the necessary addition of Octa-Soligen® 203 should be between 2 and 5 %relative to solid binder, depending on the binder and the pigment system. This is equivalent to a cobalt content of 0.024 to 0.060 %.

    When using pigments which retard the drying process such as carbon black or toluidine red, a higher addition rate or special stabilization 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 were commend trials with Octa-Soligen® 173.

  • Storage

    Protect from the effects of weathering and store at temperatures below 50 °C. Once opened, containers should be resealed immediately after each removal of the product.

  • Safety

    Please refer to our safety data sheet for information relating to product safety.

Registration :
  • Europe : EINECS
  • Switzerland : EINECS
  • Denmark : +
  • Norway : +
  • USA : TSCA (Zn2EH - CAS no. 136-53-8)
  • Canada : DSL
  • Australia : AICS
  • New Zealand : NZIoC
  • China : IECSC
  • Japan : ENCS/METI
  • Korea : ECL
  • Taiwan : NECI
  • Philippines : PICCS