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High-gloss, excellent flow and leveling for smooth, defect-free coatings.
Outstanding weather resistance and UV stability for long-term outdoor performance.
Good chemical resistance to solvents, acids, and alkalis in cured powder coatings.
Optimized reactivity for balanced cure speed and wide processing window on industrial lines.
Low melt viscosity enabling efficient electrostatic application and high transfer efficiency.
Architectural aluminum extrusions (e.g., window frames, curtain walls).
Automotive exterior trim and under-hood components.
Outdoor furniture and garden equipment.
Electrical enclosures and street lighting fixtures.
Consumer appliances requiring durable, decorative finishes.
| Chemical Type | Carboxyl-functional saturated polyester |
| Product Form | Pale yellow to light amber solid granules |
| Appearance | Free-flowing granular solid |
| Acid Value (mg KOH/g) | 27–33 |
| Gardner Color (meq/100 g) | ≤ 3 |
| Melt Viscosity (200 °C, Pa·s) | 2.5–4.5 |
| Gel Time (200 °C, s) | 80–120 |
| Primary Applications | Standard-cure TGIC-free and HAA-cured powder coatings |
Q1: What is the primary application of CRYLCOAT 4651-0 in powder coatings?
A: CRYLCOAT 4651-0 is a carboxyl-functional polyester resin specifically designed for use in TGIC-free and HAA-cured architectural and industrial powder coating systems, where it contributes to excellent flow, gloss retention, and long-term weather resistance.
Q2: How does CRYLCOAT 4651-0 perform under UV exposure and outdoor conditions?
A: As a high-purity, low-yellowing polyester resin with optimized molecular structure, CRYLCOAT 4651-0 delivers strong resistance to chalking, gloss loss, and color shift when formulated into durable exterior-grade powder coatings—making it suitable for façade, cladding, and outdoor furniture applications.
Q3: Is CRYLCOAT 4651-0 compatible with common crosslinkers used in powder coatings?
A: Yes—it is fully compatible with hydroxyalkyl amide (HAA) crosslinkers such as Primid® XL-552 and other industry-standard HAA types, and can also be used in selected TGIC-free hybrid systems with epoxy-functional resins, subject to formulation optimization.
Q4: What are the recommended storage conditions for this resin?
A: Store in original sealed packaging in a cool, dry, well-ventilated area below 30 °C, away from direct sunlight and sources of heat or ignition. Prolonged exposure to humidity or elevated temperatures may affect flow behavior and reactivity during extrusion.
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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
