Neopentyl glycol dibenzoate (NPGDB) can be effectively used as a plasticizer in acrylic-
based coatings where excellent ultraviolet (UV) light stability is required. Acrylic-based coatings are known for their durability, weather resistance, and excellent UV stability. NPGDB can enhance these properties while providing the necessary flexibility and workability in the coating formulation.
Flexibility Enhancement
NPGDB acts as a plasticizer, imparting flexibility to the acrylic-based coating. This flexibility helps the coating accommodate substrate movement and prevents cracking or delamination, especially in outdoor applications subjected to temperature fluctuations.
Improved Adhesion
The addition of NPGDB can improve the adhesion of acrylic-based coatings to various substrates, including metals, plastics, and wood. Enhanced adhesion ensures better performance and durability of the coating over time, even under exposure to UV light and weathering.
UV Light Stability
NPGDB itself offers excellent UV light stability, and its incorporation into acrylic-based coatings can enhance the overall UV resistance of the coating system. This helps prevent color fading, yellowing, or degradation of the coating when exposed to prolonged sunlight or outdoor conditions.
Compatibility with Acrylic Resins
NPGDB is compatible with acrylic resins commonly used in coatings formulations. Its incorporation into acrylic-based coatings does not adversely affect the film-forming properties or performance characteristics of the resin, ensuring a homogeneous and stable coating system.
Reduced Volatility
NPGDB exhibits low volatility, which is advantageous in coatings formulations where volatile organic compounds (VOCs) are a concern. Its use helps reduce VOC emissions from the coating, contributing to improved indoor air quality and environmental sustainability.
Long-Term Durability
The combination of flexibility, UV stability, and adhesion provided by NPGDB contributes to the long-term durability of acrylic-based coatings. These coatings can withstand exposure to harsh environmental conditions, including UV radiation, moisture, and temperature extremes, without compromising their appearance or performance.