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High-gloss, excellent flow and leveling for premium surface aesthetics.
Outstanding weather resistance and UV stability for long-term outdoor performance.
Good chemical resistance to common household cleaners and mild industrial agents.
Optimized reactivity for efficient curing with TGIC-free crosslinkers in powder coatings.
Consistent batch-to-batch reproducibility meeting stringent Allnex quality control standards.
Architectural aluminum extrusions for façades and window systems.
Outdoor furniture and garden equipment requiring durable finishes.
Street lighting poles and traffic infrastructure components.
Consumer electronics enclosures exposed to ambient environmental conditions.
Industrial metal office furniture and shelving systems.
| Chemical Type | Carboxyl-functional saturated polyester |
| Product Form | Pale yellow to light amber granules |
| Appearance | Free-flowing, uniform granular solid |
| Primary Applications | TGIC-free and HAA-cured exterior-grade powder coatings |
| Key Features | High gloss, excellent weatherability, good mechanical properties |
| Benefits | Reduced VOC, enhanced durability, reliable cure response |
| Storage Stability | Stable under dry, cool conditions (≤25°C, <60% RH) |
| Recommended Crosslinker | HAA-type (e.g., hydroxyalkyl amide) or alternative TGIC-free systems |
Q1: What is the primary application of CRYLCOAT 2491-2 in powder coating formulations?
A: CRYLCOAT 2491-2 is a carboxyl-functional polyester resin specifically designed for use in TGIC-free, high-gloss, and semi-gloss thermosetting powder coatings—particularly where excellent flow, leveling, and long-term weather resistance are required, such as for architectural and general industrial metal substrates.
Q2: Is CRYLCOAT 2491-2 compatible with common crosslinkers used in powder coatings?
A: Yes, it is formulated to be compatible with standard epoxy-based crosslinkers such as triglycidyl isocyanurate (TGIC) and hydroxyalkyl amide (HAA) systems. Its carboxyl functionality and molecular architecture support robust curing performance and film integrity across these chemistries.
Q3: How does CRYLCOAT 2491-2 contribute to outdoor durability in finished coatings?
A: This resin delivers enhanced UV stability and hydrolytic resistance due to its saturated backbone and optimized aromatic/aliphatic monomer balance, supporting superior gloss retention, chalking resistance, and color stability under prolonged exposure to sunlight and atmospheric conditions.
Q4: What handling or storage precautions should be observed for this resin?
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 avoid prolonged exposure to ambient humidity, which may affect flow behavior during extrusion or storage stability in premixes.
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E-mail: wangxingqiang@ericwchem.com
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