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High-gloss, smooth film formation for premium aesthetic finish.
Excellent UV resistance and long-term color stability in outdoor applications.
Good chemical resistance to solvents, cleaning agents, and mild acids.
Optimized for low-cure temperature powder coating systems (180–190 °C).
Consistent batch-to-batch reproducibility and reliable flow/leveling behavior.
Architectural aluminum extrusions (window frames, curtain walls).
Appliance panels (refrigerators, ovens, washing machines).
Outdoor furniture and garden equipment coatings.
Automotive non-under-hood components (trim, grilles, mirror housings).
General industrial metal finishing requiring durability and aesthetics.
| Chemical Type | Carboxyl-functional saturated polyester |
| Product Form | Free-flowing white to off-white granular solid |
| Appearance | Granular, free of lumps and foreign particles |
| Acid Value (mg KOH/g) | 28–32 |
| Gel Time (200 °C, sec) | 60–90 |
| Melt Viscosity (180 °C, Pa·s) | 3.5–5.0 |
| Density (g/cm³, 25 °C) | 1.24–1.28 |
| Primary Applications | Standard polyester powder coating for exterior and interior metal substrates |
Q1: What is the primary application of CRYLCOAT 2473-4 in powder coatings?
A: CRYLCOAT 2473-4 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 aluminum extrusions and outdoor metal furniture.
Q2: Which crosslinkers is CRYLCOAT 2473-4 typically formulated with?
A: This resin is optimized for use with hydroxyalkylamide (HAA) crosslinkers, delivering balanced reactivity, storage stability, and cure performance. It can also be used with alternative TGIC-free systems such as beta-hydroxyalkyl ether (BHAE) crosslinkers, depending on formulation goals.
Q3: How does CRYLCOAT 2473-4 contribute to weather durability in exterior applications?
A: As a high-purity, low-impurity polyester with carefully controlled molecular structure and acid value, it supports superior UV resistance and gloss retention when properly cured—making it suitable for demanding exterior applications that require extended color and film integrity under natural weathering conditions.
Q4: Is CRYLCOAT 2473-4 compatible with common powder coating additives?
A: Yes—it demonstrates good compatibility with standard powder coating additives including flow agents, degassing agents, benzoin, and texturing agents. Compatibility and optimal dosage should be verified during formulation development due to potential interactions with specific additive chemistries.
Q5: What handling precautions should be observed during processing?
A: Standard industrial hygiene practices apply: avoid inhalation of dust, use appropriate PPE (e.g., gloves, safety glasses, and respiratory protection if airborne dust is generated), and ensure adequate ventilation during handling and blending. Store in a cool, dry place away from direct sunlight and strong oxidizing agents.
Contact With Us:
E-mail: wangxingqiang@ericwchem.com
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Building A1, Jiete Industrial Park, Huangpu District, Guangzhou City, Guangdong Province, China
