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High-gloss, smooth film formation with excellent flow and leveling characteristics.
Outstanding weather resistance and UV stability for long-term outdoor performance.
Excellent chemical resistance to solvents, acids, and household cleaners.
Optimized reactivity for efficient curing with TGIC or hydroxyalkylamide (HAA) crosslinkers.
Consistent batch-to-batch reproducibility and low melt viscosity for reliable powder coating processing.
Architectural aluminum extrusions for façades, windows, and curtain walls.
Outdoor furniture and garden equipment requiring durable decorative finishes.
Agricultural and construction machinery components exposed to harsh environmental conditions.
Street lighting fixtures and municipal infrastructure elements.
Consumer appliances with premium exterior coatings demanding color retention and gloss stability.
| Chemical Type | Carboxyl-functional saturated polyester |
| Product Form | Free-flowing white to off-white granular solid |
| Appearance | Granules, free of lumps and foreign particles |
| Acid Value (mg KOH/g) | 34–38 |
| Hydroxyl Value (mg KOH/g) | < 5 |
| Melt Viscosity (mPa·s at 180 °C) | 3,500–4,500 |
| Gardner Color (on 50% w/w solution in xylene) | ≤ 2 |
| Softening Point (°C, Ring & Ball) | 70–76 |
Q1: What is the primary application of CRYLCOAT 2625-3 in powder coating formulations?
A: CRYLCOAT 2625-3 is a carboxyl-functional polyester resin specifically designed for use in TGIC-free, high-gloss, decorative powder coatings—particularly where excellent flow, leveling, and UV resistance are required, such as for indoor and semi-outdoor architectural and general industrial applications.
Q2: Which curing agents is CRYLCOAT 2625-3 compatible with?
A: This resin is formulated to react efficiently with standard epoxy-functional hardeners, especially triglycidyl isocyanurate (TGIC) alternatives like β-hydroxyalkyl amides (HAA), enabling robust crosslinking and good storage stability in finished powders.
Q3: How does CRYLCOAT 2625-3 contribute to film appearance and mechanical performance?
A: It delivers superior melt viscosity control during cure, supporting smooth surface formation, high gloss retention, and strong substrate adhesion. Its molecular architecture also supports good flexibility and impact resistance without compromising hardness or chemical resistance in the final coating.
Q4: Is CRYLCOAT 2625-3 suitable for low-cure or energy-efficient powder coating processes?
A: Yes—it exhibits good reactivity at reduced cure schedules (e.g., 160–170 °C for 15–20 minutes), making it well-suited for applications targeting lower energy consumption, provided formulation balance and curing agent selection are optimized accordingly.
Q5: What handling and storage conditions are recommended for this resin?
A: Store in a cool, dry place below 30 °C, away from direct sunlight and moisture. Keep containers tightly sealed to prevent humidity uptake, which may affect flow behavior and electrostatic charging during powder application.
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E-mail: wangxingqiang@ericwchem.com
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