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High-gloss, excellent flow and leveling for premium surface appearance.
Outstanding weather resistance and UV stability for long-term outdoor performance.
Good chemical resistance to common household cleaners and mild industrial agents.
Optimized reactivity with TGIC-free curing systems for low-bake and sustainable formulations.
Consistent batch-to-batch reproducibility meeting stringent OEM coating requirements.
Architectural aluminum extrusions (curtain walls, windows, façades).
Automotive exterior trim and non-structural decorative components.
Outdoor furniture and garden equipment coatings.
Consumer electronics enclosures requiring durable, aesthetic finishes.
Industrial metal office furniture and shelving systems.
| Chemical Type | Carboxyl-functional saturated polyester |
| Product Form | Powder (free-flowing granules) |
| Appearance | White to off-white free-flowing powder |
| Acid Value (mg KOH/g) | 28–32 |
| Gardner Color | ≤ 2 |
| Softening Point (°C, Ring & Ball) | 78–84 |
| Primary Applications | TGIC-free and TGIC-containing powder coatings for outdoor use |
| Key Features | Weather durability, high gloss retention, smooth film formation |
Q1: What is the primary application of CRYLCOAT 4645-2 in powder coatings?
A: CRYLCOAT 4645-2 is a carboxyl-functional polyester resin designed for use as a binder in TGIC-free, high-gloss, exterior-grade thermosetting powder coatings—particularly where excellent weather resistance, mechanical durability, and smooth film formation are required.
Q2: Which curing agents is CRYLCOAT 4645-2 typically formulated with?
A: This resin is compatible with standard epoxy-functional curing agents used in TGIC-free systems, including glycidyl ether-based crosslinkers (e.g., Primid XL-552) and other low-toxicity alternatives suitable for durable architectural and industrial finishes.
Q3: How does CRYLCOAT 4645-2 perform under UV exposure and outdoor conditions?
A: As a high-performance aliphatic polyester, it delivers strong resistance to UV degradation, chalking, and gloss loss—making it well-suited for long-term exterior applications such as aluminum extrusions, façade components, and garden furniture.
Q4: Is CRYLCOAT 4645-2 suitable for low-cure or energy-efficient powder coating processes?
A: Yes—it is engineered for good reactivity at standard cure schedules (e.g., 180–200 °C for 10–20 minutes), and its formulation flexibility allows optimization for reduced-temperature or shorter-time curing when paired with appropriate accelerators and crosslinkers.
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E-mail: wangxingqiang@ericwchem.com
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Building A1, Jiete Industrial Park, Huangpu District, Guangzhou City, Guangdong Province, China
