High-Temperature Stabilization for Powder Coatings

LOWINOX™ CA22, from SI Group, is designed to address these challenges by protecting powder coatings during processing while supporting long-term performance in the finished coating.

Thermal Stress in Powder Coating Processing

Powder coatings are typically exposed to elevated temperatures during extrusion, grinding, and curing. These conditions can lead to thermal degradation of common resin systems, potentially leading to discoloration, loss of mechanical properties, and reduced consistency from batch to batch. Stabilization strategies must balance high thermal resistance while processing with minimal impact on appearance and compatibility in the final formulation.

Why LOWINOX™ CA22 for Powder Coating Formulations?

LOWINOX™ CA22 is used as a stabilizer in powder coating formulations to help protect polymers under the high-temperature conditions associated with melt processing and cure. For powder coating formulators, stabilization is about not only protecting the resin but also ensuring process consistency and reliable end-use performance. LOWINOX™ CA22 helps support these goals by reducing the risk of thermal degradation during extrusion and cure, which can otherwise lead to variability in color, gloss, or physical properties.

Key performance characteristics:

• Low volatility during extrusion, helping reduce stabilizer loss under high processing temperatures
• High thermal stability during cure, supporting consistent coating quality
• Minimal color contribution, especially important for light-colored or high-gloss powder coatings
• Compatibility with common powder coating resin systems, allowing formulators to integrate it without major formulation changes

These attributes make LOWINOX™ CA22 well suited for powder coating systems that must endure aggressive processing conditions while maintaining aesthetic and functional performance.

Applications

• Appliance coatings, where thermal stability and appearance retention are critical
• Architectural powder coatings, which often demand long-term durability and color stability
• Industrial powder coatings, where processing robustness and performance consistency are key

Conclusion

As powder coatings continue to be formulated for higher performance and more demanding processing conditions, stabilization remains a core consideration. LOWINOX™ CA22 from SI Group is designed to help protect powder coating systems during high-temperature extrusion and curing while contributing to long-term thermal stability in the finished coating. Its low volatility, minimal color contribution, and compatibility with common resin systems make it a valuable option for formulators seeking consistent processing and durable performance in powder coatings.