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High-gloss, excellent flow and leveling for smooth, defect-free cured films.
Outstanding weather resistance and UV stability for long-term outdoor performance.
Good chemical resistance to solvents, cleaning agents, and mild acids.
Optimized reactivity for efficient curing with TGIC or hydroxyalkyl amide (HAA) crosslinkers.
Consistent batch-to-batch quality and low volatile organic compound (VOC) content.
Architectural aluminum extrusions for curtain walls and window frames.
Outdoor furniture coatings requiring durability and color retention.
Automotive trim and non-under-hood decorative components.
General-purpose industrial coil and powder coatings.
Appliance exteriors exposed to ambient environmental conditions.
| Chemical Type | Carboxyl-functional saturated polyester |
| Product Form | Free-flowing white to off-white powder |
| Appearance | Free-flowing granular solid |
| Acid Value (mg KOH/g) | 26–30 |
| Gel Time (180 °C, sec) | 140–180 (with 5% TGIC) |
| Particle Size (D50, µm) | 30–40 |
| Primary Applications | Exterior-grade powder coatings |
| Key Features | Weather resistance, high gloss, good mechanical properties |
Q1: What is the primary application of CRYLCOAT 1771-3 in powder coating systems?
A: CRYLCOAT 1771-3 is a carboxyl-functional polyester resin specifically designed for use in TGIC-free, high-gloss, exterior-grade thermosetting powder coatings—particularly where excellent weather resistance, mechanical durability, and smooth film formation are required.
Q2: Which curing agents is CRYLCOAT 1771-3 typically crosslinked with?
A: This resin is formulated to react efficiently with standard epoxy-functional hardeners, including glycidyl ester-based co-reactants commonly used in TGIC-free powder coating systems. Compatibility with alternative low-TGIC or TGIC-free alternatives should be verified experimentally.
Q3: How does CRYLCOAT 1771-3 contribute to film performance in outdoor applications?
A: Its molecular structure provides enhanced UV stability and hydrolytic resistance, supporting long-term gloss retention, chalking resistance, and color stability under demanding outdoor exposure conditions—making it suitable for architectural and industrial metal substrates.
Q4: Is CRYLCOAT 1771-3 compatible with common flow and leveling additives?
A: Yes, it demonstrates good compatibility with standard acrylic, silicone, and polyacrylate-based flow modifiers and degassing agents used in powder coating formulations, though optimal additive selection and dosage depend on the full formulation matrix and processing conditions.
Q5: What handling precautions should be observed during storage and processing?
A: Store in a cool, dry place away from direct sunlight and moisture. Avoid prolonged exposure to elevated temperatures prior to processing, as premature partial reaction or viscosity change may occur. Always follow standard industrial hygiene practices for handling fine organic powders.
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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
