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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 compatibility with standard triglycidyl isocyanurate (TGIC) curing agents
Low melt viscosity enabling efficient electrostatic powder coating application
Consistent batch-to-batch reproducibility meeting stringent quality control standards
Architectural aluminum extrusions for curtain walls and window frames
Outdoor furniture and garden equipment coatings
Automotive non-critical exterior components (e.g., trim, wheels)
Industrial metal furniture and fencing systems
Consumer appliances requiring durable, decorative finishes
| Chemical Type | Carboxyl-functional saturated polyester |
| Product Form | Free-flowing granular solid |
| Appearance | Off-white to light beige granules |
| Acid Value (mg KOH/g) | 35–40 |
| Gardner Color (on 50% solution in MEK) | ≤ 2 |
| Melt Viscosity (200°C, Pa·s) | 1.5–2.5 |
| Softening Point (°C, Ring & Ball) | 70–75 |
| Primary Applications | Exterior-grade TGIC-cured powder coatings |
Q1: What is the primary application of CRYLCOAT 2686-3 in powder coating formulations?
A: CRYLCOAT 2686-3 is a carboxyl-functional polyester resin specifically designed for use in TGIC-free, high-gloss, decorative powder coatings—particularly where excellent flow, leveling, and resistance to yellowing under UV exposure are required.
Q2: Is CRYLCOAT 2686-3 compatible with common epoxy-polyester hybrid systems?
A: No—CRYLCOAT 2686-3 is formulated as a pure polyester component for pure polyester or polyester-hydroxyacrylate systems. It is not intended for use in epoxy-polyester hybrids, which require resins with different functionality and reactivity profiles.
Q3: How does CRYLCOAT 2686-3 contribute to film flexibility and impact resistance?
A: Its molecular architecture provides a balanced combination of rigidity and chain mobility, supporting good substrate adhesion and resistance to mechanical stress—including improved reverse impact performance compared to higher-Tg standard polyesters—without compromising hardness or gloss retention.
Q4: Can CRYLCOAT 2686-3 be used in outdoor architectural applications?
A: Yes—this resin delivers strong UV stability and weather resistance when properly formulated with suitable stabilizers and pigments, making it appropriate for exterior-grade powder coatings on aluminum extrusions, façade components, and other architectural substrates.
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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
