Cobalt drier for solvent-based systems

  • Physical Characteristics

    AppearanceClear, middle-viscous, blue-violet liquid
    Metal contentCo: 11.70 – 12.30 %
    Non-volatile content57.00 – 69.00 % ISO 3251 (2g, 3h, 105°C)
    ViscosityMax. 500 mPa.s (20°C) ISO 3219 (A)
    Specific gravityNA
    Density0.980 – 1.020 g/cm³ DIN 51757 (20 °C)
    SolventWhite-spirit containing <1 % aromatics

  • Features

    • Based on metal salts of 2-ethylhexanoic acid (octoates) or their isomers
    • Catalyzes redox reactions and even small additions result in the dissociation of autoxidant hydroperoxides and to a change in valency from Co2+ to Co3+
    • Initiates rapid surface drying

  • Applications

    • All oxidative systems, including:
      • Architectural paints
      • Industrial coatings
      • Stains
      • Varnishes
      • Oil-based inks
      • Artists’ oil paints

  • Dosage

    In conventional alkyd formulations, the cobalt amount is in the range of 0.03 to 0.08 % metal, calculated on the solid binder. In paints and varnishes Borchers® Deca Cobalt mostly is combined with Borchers® Deca Zirconium and Octa-Soligen® Calcium 10, basic. In printing inks, a combination of Borchers® Deca Cobalt and Borchers® Deca Manganese is recommended. The cobalt amount is in the range of 0.03 to 0.05 % metal, calculated on the solid binder. 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.