Cobalt-Free Paint Drier for Waterborne Alkyds

Borchi® OXY-Coat 1101 is a high-performance cobalt-free paint drier for waterborne alkyds that demonstrates excellent drying performance at low-use levels in coatings.

This curing additive for coatings is not only cobalt-free, but also VOC-free, APEO-free, and Proposition 65 and REACH compliant. As concerns around cobalt are increasing within the coatings industry, this product benefits the market as a waterborne curing solution that does not contain metals like cobalt that could potentially compromise sustainability in coating applications.

In June 2022, the U.S. EPA prioritized Cobalt and Cobalt Compounds for risk assessment and possible regulatory reclassification. 


Benefits of Waterborne High-Performance Cobalt-Free Driers

Borchi® OXY-Coat 1101 is a high-performance catalyst that is applicable in coating systems that dry oxidatively. It is our primary cobalt-free solution for waterborne alkyd coatings that is available in all regions. Benefits of this cobalt-free paint drier include improved dry times, gloss, and haze. This solution also provides brighter whites and lower yellow tones in coatings. Borchi® OXY-Coat 1101 helps waterborne alkyd coatings achieve waterborne acrylic-level performance.

Our high-performance cobalt-free drying technology works well in waterborne exterior alkyd coatings used in extreme weather conditions. This helps extend the coatings season window for outdoor paint applications. It provides wrinkle-free drying in hot weather and improves dry times in low temperature, high humidity weather.

Improved adhesion in direct-to-metal applications and better loss of dry over stability are also provided by our cobalt-free drying solutions.



Borchi® OXY-Coat 1101 Drying in Adverse Conditions

improved dry times in adverse conditions for waterborne alkyd paints with cobalt free drier

Borchi® OXY-Coat 1101 cobalt-free drier improves dry times in low temperature, high humidity conditions for waterborne alkyd paints


Color Advantages of Borchi® OXY-Coat Technology 

                   Cobalt Drier                    Borchi® OXY-Coat 1101

Color advantages of Borchi® OXY-Coat technology include brighter whites in alkyd paints compared to metal carboxylate alternatives


Borchi® OXY-Coat 1101 also enhances durability by providing excellent blocking, washability, and corrosion resistance.





Applications include wood, industrial, and architectural coatings, as well as printing inks.



Click here to learn how Borchi® OXY-Coat 1101 improves performance and durability in common USA waterborne resins within trim paint formulations

This article contains information about the benefits of Borchi® OXY-Coat as a waterborne alkyd paint drier.


Starting Point Formulation

Air Drying One Component Single Layer Black Formulation with Bahydrol 2592

  • Physical Characteristics

    Appearance Clear brown to yellow liquid 
    Viscosity – 200 mPa·s (informative) ISO 3219 (A) (20 °C) 
    Density Approx. 1.0 g/cm3 (informativeDIN 51757 (20 °C) 
    Solvent Water (informative) 

  • Features

    • Improved drying activity, color performance, gloss and haze compared to cobalt-based driers
    • Based on a unique, patented, highly active iron complex
    • Compliant with the environmental labels “Blue Angel” (RAL-UZ 12a) and “EU Ecolabel” (Regulation (EC) No. 66/2010, Commission Decision 2014/312/EU)
    • Can be used in all coatings with binders that dry by oxidation
    • Ideal for water-based systems
    • Outperforms cobalt-based driers

  • Applications

    • Coatings with binders that dry by oxidation

  • Dosage

    All resin systems are unique and will require the level of Borchi® OXY - Coat 1101 to be optimized for the best cost and dry. We recommend using a ladder study of 0.25 – 2 % Borchi® OXY - Coat 1101 as supplied on resin solids. Please keep in mind that too much Borchi®  OXY - Coat 1101 might inhibit through dry. Borchi® OXY - Coat 1101 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 :

For chemical inventory status, please review section 15 of the current SDS.

Click here to access the SDS portal.

For additional regulatory information, please contact [email protected].

High-Performance Catalysts Products