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High-gloss, excellent flow and leveling for smooth, defect-free cured films.
Outstanding chemical resistance, particularly to solvents, cleaning agents, and mild acids.
Excellent UV stability and long-term color retention in outdoor applications.
Good mechanical properties including hardness, flexibility, and impact resistance.
Designed for low-cure-temperature powder coating systems (180–190 °C, 10–15 min).
Architectural aluminum extrusions for façades and window frames.
Outdoor furniture and garden equipment coatings.
Automotive exterior trim and non-critical under-hood components.
Electrical enclosures and industrial metal housings.
Office furniture and retail display fixtures requiring durable aesthetics.
| Chemical Type | Carboxyl-functional saturated polyester |
| Product Form | Free-flowing white to off-white granular solid |
| Appearance (as supplied) | Granules, free of lumps and fines |
| Acid Value (mg KOH/g) | 32–38 |
| Gardner Color (10% solution in xylene) | ≤ 2 |
| Melt Viscosity (at 180 °C, Pa·s) | 4.5–6.5 |
| Softening Point (°C, ASTM E28) | 78–84 |
| Primary Applications | Exterior-grade thermosetting powder coatings |
Q1: What is the primary application of CRYLCOAT 2662-3 in powder coating formulations?
A: CRYLCOAT 2662-3 is a carboxyl-functional polyester resin designed for use as a binder in TGIC-free, high-gloss, exterior-grade powder coatings—particularly where excellent weather resistance, mechanical durability, and smooth film formation are required.
Q2: Is CRYLCOAT 2662-3 compatible with common epoxy-based curing agents?
A: No—CRYLCOAT 2662-3 is specifically formulated for use with hydroxyalkylamide (HAA) curing agents, not epoxy resins. Its carboxyl functionality enables efficient crosslinking with HAA systems to deliver robust performance in TGIC-free applications.
Q3: How does CRYLCOAT 2662-3 contribute to outdoor durability in finished coatings?
A: It provides strong UV stability and hydrolytic resistance due to its saturated aromatic-aliphatic backbone, supporting long-term gloss retention, chalking resistance, and color stability under demanding outdoor exposure conditions.
Q4: Can CRYLCOAT 2662-3 be blended with other polyester resins to modify performance?
A: Yes—formulators commonly blend it with complementary carboxyl-functional polyesters to fine-tune melt viscosity, flow behavior, or cure response, though compatibility and final film properties should be verified through lab-scale testing.
Q5: What storage conditions are recommended to maintain optimal handling and reactivity?
A: Store in a cool, dry place below 30 °C, protected from moisture and direct sunlight. Keep containers tightly sealed to prevent humidity uptake, which may affect flow and electrostatic application performance.
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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
