High-Performance Paint Catalyst for High Solids Alkyd Resins

Borchi® Dragon is a high-performance, organometallic ligand paint catalyst for solvent-based systems containing high solids, long oil alkyd resins. This solution is cobalt-free and allows for low volatile organic compound (VOC) formulations.

 

 

Importance of Low VOCs and Cobalt-Free Driers in High Solids Alkyd Coatings

Regulations are becoming increasingly stringent for coatings around the world.

VOCs have been a concern for some time because they reduce sustainability in household products such as paint.

According to the Cobalt Institute, cobalt sustainability is being questioned by regulatory agencies around the world. For example, the U.S. EPA recently prioritized Cobalt and Cobalt Compounds for risk assessment and possible regulatory reclassification. This metal is often used as a paint catalyst and drier.

As Borchi® Dragon is cobalt-free and allows for low VOCs in high solids coatings, this paint catalyst provides performance benefits in a sustainable manner compared to metal carboxylate alternatives.

 

Benefits of High-Performance Catalysts for High Solids Paints

Along with its sustainability, Borchi® Dragon provides a wide range of performance benefits in paints. These include faster dry times, non-yellowing performance, complexity reduction, and storage stability. This product requires minimum dependency on through driers. Hardness is comparable to cobalt-containing solutions.

Borchi® Dragon works well in both standard and adverse conditions. It extends coatings season windows and prevents wrinkling from over-application in hot weather.

 

Applications

Borchi® Dragon is ideal for use in architectural, wood, and general industrial end-use applications.

In high solids white enamel architectural coatings, Borchi® Dragon provides brighter whites and enhanced through dry performance compared to cobalt.

 

high performance catalyst in low VOC high gloss enamels with high solids, long oil alkyd resin coatings for architectural applications

  Cobalt Containing                                                       Borchi® Dragon

Borchi® Dragon provides brighter and cleaner whites compared to cobalt-containing catalysts in high gloss white enamels

 

Through Dry Time Comparison Under Standard and Adverse Conditions

improved dry times cobalt-free high performance drier for high solids alkyd resin coatings

0.5% Borchi® Dragon provides better through dry times in standard and adverse conditions compared to cobalt-containing and alternative cobalt-free catalysts in high gloss white enamels

 

When used in clear standard varnish wood finishes, Borchi® Dragon prevents thick film build. It also prevents the coating from turning yellow over time.

 

wrinkling prevention from over application in high performance catalyst for low VOC coatings with high solids alkyd resins in clear wood finishes

Cobalt Containing                                                         Borchi® Dragon

Wrinkling from over-application is prevented with the use of Borchi® Dragon

 

     Yellow Value (b*)

b value borchi dragon high performance catalyst for high solids alkyd resins. provides non yellowing in clear varnish

Non-yellowing in clear varnishes is enhanced with the use of 1% Borchi® Dragon compared to cobalt-containing catalysts

 

 

Borchi® Dragon also provides outstanding wet adhesion, corrosion resistance, and dry times in high gloss black direct-to-metal (DTM) industrial coatings.

 

wet adhesion for Borchi Dragon high performance catalyst for high solids alkyd   Cobalt Containing                                                     Borchi® Dragon

Borchi® Dragon provides better wet adhesion than cobalt containing catalysts in high gloss black DTM coatings

 

corrosion resistance high performance catalyst

      Cobalt Containing                       Borchi® Dragon

  300 hours NSS

Borchi® Dragon provides better scribe creep and
reduced delamination compared to cobalt-containing catalysts

 

Additional Solutions

Borchi® Dragon is great for use with Borchi® Shield MEKO-free anti-skinning agent for skin prevention in high solids and long oil coating systems with reduced VOCs.

 

Starting Point Formulations

Interior & Exterior High Gloss Paint Formulations with Urakyd AD 130

Cobalt- and MEKO-free High Solid Decorative Paint Formulation with Urakyd HS233

Cobalt- and Oxime-free Interior and Exterior High Gloss Decorative Formulation with Vilkyd 212LA70

  • Physical Characteristics

    Appearance Brown to amber liquid 
    Viscosity Max. 100 mPa·s (informative) ISO 3219 (A) (20 °C)
    Density Approx. 0.88 g/cm3 (informative) ISO
    2811-2 (20 °C)

  • Features

    • Faster drying times particularly in long oil alkyds
    • Allows for <350g/L alkyd formulation with higher oil content
    • Fast drying in adverse ambient conditions down to 40°F (4.4 °C)
    • Reduction in complexity of drier package in formulation
    • No yellowing and brighter whites when compared to cobalt driers
    • Provides wrinkle-free appearance when utilized with thick film applications
    • Allows for low VOCs in coatings with high solids alkyd resins
    • Cobalt-free drier

  • Applications

    • Coatings
      • Wood
      • Industrial
      • Protective and Marine
      • Architectural
      • Automotive

  • Dosage

    All resin systems are unique and will require the level of Borchi® Dragon to be optimized for the best cost and dry performance. We recommend using a ladder study starting at 0.5 % up to 3 % of Borchi® Dragon as supplied on resin solids. Optimized dosage must be determined as excessive Borchi® Dragon could reverse dry performance. Borchi® Dragon 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. Color of product varies on storage.

  • Safety

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

  • Formulation Guide

    Click here for formulation guide.

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 regulatory@milliken.com.

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