Cobalt-Free Driers / Sustainable Solution for Improved Dry Time in Alkyd Paint

Borchi® OXY-Coat is a metal-based cobalt-free drier for improved drying time in paints containing an alkyd resin. It demonstrates excellent drying performance at low use levels in solvent-based short, medium, and long oil alkyd paint. This solution does not require the use of an auxiliary drier. Cobalt-free driers are eco-friendly drying solutions as it does not contain any toxic metals. It is particularly efficient in coatings using propylene glycol.



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Comparison of Borchi® OXY-Coat in Medium Oil Alkyd Paint

better dry times with eco-friendly cobalt-free drier in alkyd paint. also competitive with durachem and patcham cobalt and cobalt-free driers

Borchi® OXY-Coat cobalt-free drier provides improved drying time in alkyd paint compared to a cobalt drier in medium oil alkyd systems. This oxidative curing catalyst also works well in short and long oil alkyd systems


How does alkyd paint dry?

Coatings typically need a metal catalyst to achieve the best dry times. As a unique metal-based catalyst, Borchi® OXY-Coat is applicable in a wide range of alkyd coating systems that dry oxidatively.


Benefits of Cobalt-Free Driers

Cobalt-free paint driers are ideal long-term solutions for formulators looking to meet stringent environmental regulations

According to the Cobalt Institute, cobalt may be regulated out of the coatings industry by 2021. As cobalt is increasingly being labeled as a toxic metal around the world, Borchi® OXY-Coat boasts as a sustainable curing solution that does not contain any toxic metals. It also allows for low amounts of Volatile Organic Compounds (VOCs) in formulations and is compliant with Proposition 65 and REACH guidelines.

Benefits of Borchi® OXY-Coat include improved drying time, gloss, and haze in alkyd-based paint. This solution also provides brighter whites and acts as an anti-yellowing agent in coatings. Adhesion is improved in direct to metal applications with the use of this product. Borchi® OXY-Coat also eliminates the need for anti-skinning agents.

Borchi® OXY-Coat works well for exterior coatings used in adverse weather conditions. This extends the coatings season window for paint applications. It provides wrinkle-free drying in hot weather and faster drying in cold weather.



Non-Yellowing of Alkyds Over Time

non-yellowing of alkyds cobalt-free paint drier

      Cobalt Drier                                     Borchi® OXY-Coat

Color advantages include the non-yellowing of substrates and brighter whites in coatings compared to cobalt and other metal carboxylates


Borchi OXY-Coat provides warmer wood tones compared to metal carboxylate alternatives

       Manganese Drier                           Borchi® OXY-Coat   

    Yellower Wood Tones                    Warmer Wood Tones

Borchi® OXY-Coat provides warmer wood tones compared to manganese driers, which tend to cause yellowing in wood coatings


Borchi® OXY-Coat Advantage Under Adverse
(10ºC / 80% RH) Conditions in Different Systemshow does alkyd paint dry? with a cobalt-free drier for adverse conditions

Compared to cobalt carboxylate driers, cobalt-free paint driers allow exterior coatings to be used in adverse conditions. They provide improved dry times in a wide range of weather conditions


Wrinkling Prevention on Substrates

wrinkle-free drying wrinkle prevention for exterior coatings used in extreme weather conditions

         Cobalt Drier                       Borchi® OXY-Coat

Unlike cobalt alternatives, Borchi® OXY-Coat prevents wrinkling in hot weather, creating a smooth appearance


Through Dry Time of SB Pigmented Direct to Metal Applications

how does alkyd paint dry in any temperature? by utilizing a cobalt-free drier that can be used in exterior alkyd paint. not part of durachem (dricat) or patcham cobalt or cobalt-free driers

         Cobalt Drier             Borchi® OXY-Coat

Cobalt replacement driers are better alternatives than cobalt driers in direct to metal applications when used in standard and adverse conditions


eliminate potential use of anti-skinning agents

        Cobalt Drier                                               Borchi® OXY-Coat

Unlike cobalt containing alternatives, Borchi® OXY-Coat eliminates the potential use of anti-skinning agents in coatings


Similar Cobalt-Free Driers

While Borchi® OXY-Coat can work in water- and solvent-based systems, it tends to work best in solvent-based alkyds. Borchi® OXY-Coat 1101 is ideal for water-based alkyd coatings. Borchi® Dragon is designed for use in high solids alkyds. Please contact our technical service team for more information.



Ideal applications for Borchi® OXY-Coat include wood, industrial, and architectural coatings, as well as printing inks.



Click here for sales tool.

Click here for sales tool on using Borchi® OXY-Coat cobalt-free drier in coatings for extreme weather conditions.


  • Physical Characteristics

    Appearance Clear brown to yellow liquid 
    Viscosity Max. 200 mPa·s (informative) ISO 3219 (A) (20 °C) 
    Density Approx. 1.04 g/cm3 (informativeDIN 51757 (20 °C) 
    Solvent 1,2-propylene glycol (informative) 

  • Features

    • Improves drying activity, color performance, gloss and haze compared to cobalt-based driers in alkyd paints
    • Brighter whites and non-yellowing in coatings
    • Based on a unique, patented, highly active iron complex
    • Primarily recommended for the use in solvent-based systems
    • Can be used in all coatings which dry by oxidation

  • Applications

    • Coatings with resins that that dry by oxidation 
      • Alkyds 
      • Vegetable oils
      • Epoxy esters
      • Polybutadiene 
      • Others 

  • Dosage

    All resin systems are unique and will require the level of Borchi® OXY - Coat to be optimized for the best cost and dry. We recommend using a ladder study of 0.5 -3 % Borchi® OXY - Coat as supplied on resin solids. Please keep in mind that too much Borchi® OXY – Coat might inhibit through dry. Borchi® OXY - Coat should be added as one of the last ingredients before the Anti-Skinning agent. 

  • Storage

    Protect from the effects of weathering and store at temperatures between 5 and 30 °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 : Pre-registered, EU - REACH (Registered)
  • Switzerland : EINECS
  • USA : TSCA
  • Canada : Allowed under specific conditions. Please contact us for further information.
  • Australia : Registered but currently may be subject to volume restrictions
  • New Zealand : May be used as a component in a product covered by a group standard but it is not approved for use as a chemical in its own right
  • China : Registered but currently may be subject to volume restrictions
  • Japan : Registered but currently may be subject to volume restrictions
  • Korea : ECL
  • Taiwan : NECI