Cobalt is the most important metal drier. It results in rapid surface drying and, in combination with a secondary drier such as zirconium, barium or zinc, in uniform through-drying of the paint film.

  • Supply Form

    Octa-Soligen® driers are based on metal salts of 2-ethyl hexanoic acid (octoates) or their isomers. We supply cobalt octoates with different metal contents and solvents that meet the specific requirements of various applications:

    Octa-Soligen® Cobalt 10solventborne systems
    Octa-Soligen® Cobalt 12solventborne systems
    Octa-Soligen® Cobalt 12 (oil)printing inks
    Octa-Soligen® Cobalt 12 HSVOC-reduced and High-Solid coatingsunsaturated polyesters
    Octa-Soligen® Cobalt 6solventborne systems
    Octa-Soligen® Cobalt 6 HSVOC-reduced and High-Solid coatingsunsaturated polyesters
    Octa-Soligen® Cobalt 8 (oil)printing inks

  • Properties

    Octa-Soligen® Cobalt catalyses redox reactions and even small additions result in the dissociation of autoxidant hydroperoxides and to a change in valency from Co2+ to Co3+. Octa-Soligen® Cobalt thus results in rapid surface drying. A surplus of cobalt may result in defects such as wrinkling, poor through-drying and yellowing.

  • Applications

    Octa-Soligen® Cobalt is used in all oxidative systems, whether air-or forced-drying.

    It is used in architectural paints, industrial coatings, stains, varnishes, oil-based inks and artists’ colors.

  • Dosage

    In conventional alkyd formulations, the cobalt addition is between 0.03 and 0.08 %, calculated on the solid binder.

    In printing inks, a combination of Octa-Soligen® Cobalt and Octa-Soligen® Manganese is recommended.The amount of cobalt is between 0.03 and 0.05 %, calculated on the solid binder.

    Octa-Soligen® Cobalt can also be combined with Octa-Soligen® Zirconium and Octa-Soligen® Calcium.This yields outstanding results in systems that are free from heavy metals.

    Irrespective of these guidelines, the addition should always be determined in preliminary trials

  • 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
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  • USA : TSCA
  • Canada : DSL
  • Australia : AICS
  • New Zealand : NZIoC
  • China : IECSC
  • Japan : ENCS
  • Korea : ECL
  • Taiwan : NECI
  • Philippines : PICCS