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High-gloss, excellent flow and leveling for premium surface aesthetics.
Outstanding weather resistance and UV stability for long-term outdoor performance.
Good chemical resistance to solvents, cleaning agents, and mild acids.
Optimized reactivity for efficient curing with TGIC-free or low-TGIC powder coating systems.
Consistent batch-to-batch reproducibility ensuring reliable manufacturing performance.
Architectural aluminum extrusions (e.g., window frames, curtain walls).
Automotive exterior trim and non-under-hood components.
Outdoor furniture and garden equipment coatings.
General industrial metal finishing for durable consumer and commercial goods.
Appliance housings requiring high-end appearance and corrosion protection.
| Chemical Type | Carboxyl-functional saturated polyester |
| Product Form | Free-flowing white to off-white granules |
| Appearance | Granular, homogeneous, free of lumps or fines |
| Acid Value (mg KOH/g) | 26–30 |
| Hydroxyl Value (mg KOH/g) | < 5 |
| Gardner Color | < 2 |
| Melt Viscosity (Pa·s) at 200 °C | 3,500–5,500 |
| Primary Applications | High-performance TGIC-free and low-TGIC architectural and industrial powder coatings |
Q1: What is the primary application of CRYLCOAT 4442-2 in powder coatings?
A: CRYLCOAT 4442-2 is a carboxyl-functional polyester resin designed for use in TGIC-free, high-gloss, decorative powder coating systems—particularly where excellent flow, leveling, and long-term weather resistance are required.
Q2: Is CRYLCOAT 4442-2 compatible with standard epoxy-based curing agents?
A: No—CRYLCOAT 4442-2 is specifically formulated for use with hydroxyalkylamide (HAA) crosslinkers, not epoxy resins. Its carboxyl functionality enables efficient reaction with HAA hardeners to deliver robust film formation and mechanical performance.
Q3: How does CRYLCOAT 4442-2 contribute to outdoor durability in powder coatings?
A: As a high-purity, low-impurity polyester resin with optimized molecular structure, it provides strong UV stability and resistance to chalking and gloss loss when properly formulated and cured—making it well-suited for architectural and exterior industrial applications.
Q4: What handling precautions should be observed during processing?
A: Standard industrial hygiene practices apply: avoid inhalation of dust, use appropriate PPE (e.g., gloves and safety glasses), and ensure adequate ventilation during handling and milling. The resin is non-hazardous in its solid form but should be processed in accordance with site-specific safety protocols.
Contact With Us:
E-mail: wangxingqiang@ericwchem.com
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Building A1, Jiete Industrial Park, Huangpu District, Guangzhou City, Guangdong Province, China
