Great Heat Resistance Solid Acrylic Resin MMA Used In Plastic Substrates Crylic, ABS, PVC
SA-1044 is a solid acrylic resin, a copolymer of methyl methacrylate (MMA) and n-butyl methacrylate (n-BMA). It is designed for industrial coatings and inks requiring high hardness, heat resistance, and fast drying.
Core Characteristics & Performance
Chemical & Performance Basis:
MMA provides hardness and heat resistance (Tg 70°C), while n-BMA contributes flexibility and solubility. Their copolymerization balances these properties. Its medium molecular weight (Mw 40,000) and low inherent viscosity (IV 0.19) facilitate processing and film formation.
Key Application Advantages:
Fast Drying: Offers a "fast tack-free time," enhancing production efficiency
Excellent Adhesion: Provides very good dry and wet adhesion to various engineering plastics (e.g., ABS, PVC, PS), making it particularly suitable for plastic coatings
Good Compatibility: Compatible with many solvents and nitrocellulose, allowing for flexible formulation adjustments
Primary Application Fields:
This combination of properties makes it well-suited for marine coatings (requiring weather and corrosion resistance), plastic coatings (requiring adhesion and hardness), and gravure/screen printing inks (requiring fast drying and film-forming properties).
Quality Control Metrics:
Acid Value: 5.0-7.0 mgKOH/g (influences reactivity and adhesion)
Moisture Content: ≤ 1.0% (ensures storage stability and coating film performance)
In summary, SA-1044 is a versatile, general-purpose solid acrylic resin with well-balanced performance, effective for coatings on plastic substrates.