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.
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Importance of Low VOCs and Cobalt-Free Driers in High Solids Alkyd Coatings
Regulations are becoming increasingly stringent for coatings around the world.
Certain substances found in paints are detrimental. VOCs have been a regulatory concern for some time based on the harmful effects they can cause in humans. Lowering VOCs is especially difficult due to increasing solids content.
Cobalt is also a regulatory concern. According to the Cobalt Institute, cobalt may be regulated out of use in the coatings industry as early as 2021. Researchers are finding that it, too, can cause harmful effects in humans.
Cobalt is also being investigated as a conflict mineral. 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 a wide range of 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 reduced dry times, non-yellowing performance, complexity reduction, and storage stability. This product requires minimum dependency on through driers and anti-skinning agents. 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.
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.
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
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.
Cobalt Containing Borchi® Dragon
Wrinkling from over-application is prevented with the use of Borchi® Dragon
Yellow Value (b*)
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 DTM industrial coatings.
Borchi® Dragon provides better wet adhesion than cobalt containing catalysts in high gloss black DTM coatings
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)
- 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
- Protective and Marine
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.
Protect from the effects of weathering and store at temperatures between 5 and 30 °C.
Please refer to our safety data sheet for information relating to product safety.
SAFETY DATA SHEET
- Europe : EINECS, EU - REACH (Registered)
- USA : TSCA
- Canada : Allowed under specific conditions. Please contact us for further information.
- 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 : Allowed under specific conditions. Please contact us for further information.
- Korea : Registered but currently may be subject to volume restrictions
- Taiwan : NECI