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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 for efficient curing with TGIC-free crosslinkers in powder systems.
Consistent batch-to-batch reproducibility meeting stringent industrial quality control standards.
Architectural aluminum extrusions (e.g., window frames, curtain walls).
Automotive exterior trim and non-under-hood components.
Outdoor furniture and garden equipment coatings.
Industrial metal enclosures and electrical cabinets.
Consumer appliance housings requiring durable decorative finishes.
| Chemical Type | Carboxyl-functional saturated polyester |
| Product Form | Free-flowing granular solid |
| Appearance | Off-white to light beige granules |
| Primary Applications | TGIC-free and HAA-cured powder coatings |
| Key Features | High gloss, excellent weatherability, low melt viscosity |
| Benefits | Reduced film defects, extended service life, energy-efficient curing |
| Storage Stability | Stable for ≥12 months at ≤25 °C in original unopened packaging |
| Recommended Crosslinker | HAA (e.g., Primid XL-552) or TGIC alternatives |
Q1: What is the primary application of CRYLCOAT 2661-3 in powder coating systems?
A: CRYLCOAT 2661-3 is a carboxyl-functional polyester resin specifically designed as a binder for TGIC-free (triglycidyl isocyanurate-free) thermosetting powder coatings, particularly where high gloss, excellent flow, and robust mechanical properties are required — such as in architectural, general industrial, and appliance finishes.
Q2: Is CRYLCOAT 2661-3 compatible with common crosslinkers other than TGIC alternatives?
A: Yes — it is formulated to react efficiently with hydroxyalkyl amide (HAA) crosslinkers, and demonstrates good compatibility with other standard amino-based and epoxy-functional curing agents used in TGIC-free powder systems. Performance optimization requires verification through formulation testing.
Q3: How does CRYLCOAT 2661-3 contribute to film formation and appearance in cured coatings?
A: Its balanced molecular weight distribution and controlled acid value support excellent melt viscosity behavior, enabling smooth leveling, high gloss retention, and minimal orange peel — especially under standard curing conditions (e.g., 180–200 °C for 10–20 minutes).
Q4: What storage and handling precautions should be observed?
A: Store in a cool, dry place away from direct sunlight and sources of heat or ignition. Keep containers tightly sealed to prevent moisture absorption and thermal pre-reaction. Avoid prolonged exposure to elevated ambient temperatures before 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
