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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, weak acids, and alkaline cleaners.
Optimized reactivity with TGIC-cured powder systems for efficient crosslinking.
Consistent batch-to-batch quality and reliable melt viscosity profile.
Architectural aluminum extrusions (e.g., window frames, curtain walls).
Automotive exterior trim and under-hood components.
Outdoor furniture and garden equipment coatings.
General industrial metal finishing for durable decorative finishes.
| Chemical Type | Carboxyl-functional saturated polyester |
| Product Form | Free-flowing granules |
| Appearance | White to off-white solid |
| Acid Value (mg KOH/g) | 28–32 |
| Number Average Molecular Weight (Mn) | ~2,800–3,200 g/mol |
| Gel Time (200 °C, with 5% TGIC) | 120–160 seconds |
| Melt Viscosity (180 °C, Pa·s) | 4,500–6,500 |
| Primary Applications | TGIC-cured architectural and industrial powder coatings |
Q1: What is the primary application of CRYLCOAT 2501-2 in powder coatings?
A: CRYLCOAT 2501-2 is a carboxyl-functional polyester resin specifically designed for use in TGIC-free, high-gloss, weather-resistant thermosetting powder coatings—particularly for architectural and industrial metal finishing applications where long-term UV stability and mechanical durability are required.
Q2: Which crosslinkers is CRYLCOAT 2501-2 compatible with?
A: This resin is formulated to react efficiently with standard epoxy-functional curing agents, especially glycidyl ether-based hardeners such as Araldite PT810 or equivalent alternatives. It is not intended for use with TGIC or hydroxyalkylamide (HAA) systems without prior compatibility testing.
Q3: How does CRYLCOAT 2501-2 contribute to film performance in outdoor applications?
A: Its molecular structure delivers excellent resistance to chalking, gloss retention, and color stability under accelerated weathering conditions—including QUV and xenon-arc exposure—making it suitable for exterior-grade powder coatings on aluminum extrusions, façade components, and other exposed metal substrates.
Q4: What are the recommended storage conditions for this resin?
A: Store in original sealed packaging in a cool, dry place below 30 °C, away from direct sunlight and sources of heat or ignition. Prolonged exposure to elevated temperatures or humidity may affect flow behavior and reactivity during processing.
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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
