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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 solvents, cleaning agents, and mild acids.
Compatible with standard TGIC and hydroxyalkylamide (HAA) curing agents.
Consistent batch-to-batch reproducibility and low volatile organic content (VOC).
Architectural aluminum extrusions for curtain walls and window frames.
Outdoor furniture and garden equipment coatings.
Automotive trim and non-under-hood decorative components.
General industrial metal finishing requiring durable, high-appearance 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) | 26–30 |
| Gardner Color | ≤ 3 |
| Melt Viscosity (200 °C, Pa·s) | 25–40 |
| Softening Point (°C, Ring & Ball) | 78–84 |
| Primary Applications | Exterior powder coatings for architectural and industrial metals |
Q1: What is the primary application of CRYLCOAT 1738-2 in powder coatings?
A: CRYLCOAT 1738-2 is a carboxyl-functional polyester resin specifically designed for use in TGIC-free, high-gloss, weather-resistant thermosetting powder coatings—commonly applied to architectural aluminum extrusions and outdoor metal substrates.
Q2: How does CRYLCOAT 1738-2 contribute to weather resistance in finished coatings?
A: Its molecular structure provides excellent hydrolytic stability and UV resistance, supporting long-term gloss retention and minimal chalking when cured with appropriate crosslinkers such as β-hydroxyalkyl amides (HAA) or glycidyl ester-based alternatives.
Q3: Is CRYLCOAT 1738-2 compatible with standard powder coating curing schedules?
A: Yes—it is formulated for conventional curing conditions, typically around 180–200 °C for 10–20 minutes, and demonstrates good flow and leveling behavior without requiring extended bake times or specialized oven profiles.
Q4: Can CRYLCOAT 1738-2 be used in low-cure or energy-efficient formulations?
A: While optimized for standard cure, it can be adapted for moderate low-cure systems (e.g., 160–170 °C) when paired with reactive co-resins or catalytic additives—but performance validation under specific low-cure conditions is recommended prior to full-scale implementation.
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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
