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High-gloss, durable finish with excellent flow and leveling characteristics.
Optimized for TGIC-free powder coating systems offering improved safety and regulatory compliance.
Excellent weather resistance and UV stability for long-term outdoor performance.
Good mechanical properties including impact resistance and flexibility on metal substrates.
Consistent batch-to-batch reproducibility supporting reliable manufacturing operations.
Architectural aluminum extrusions for façades and curtain walls.
Outdoor furniture and garden equipment coatings.
Agricultural and construction machinery components.
Lighting fixtures and streetlamp housings.
Automotive non-under-hood exterior trim parts.
| Chemical Type | Carboxyl-functional saturated polyester |
| Product Form | Pale yellow to light amber solid granules |
| Appearance | Free-flowing, homogeneous granules |
| Acid Value (mg KOH/g) | 28–32 |
| Gardner Color | ≤ 3 |
| Melt Viscosity (200 °C, Pa·s) | 15–25 |
| Primary Applications | TGIC-free architectural and industrial powder coatings |
| Key Features | High gloss, UV resistance, TGIC-free compatibility, excellent storage stability |
Q1: What is the primary application of CRYLCOAT 4655-2 in powder coatings?
A: CRYLCOAT 4655-2 is a carboxyl-functional polyester resin specifically designed for use in TGIC-free, high-gloss, exterior-grade powder coatings—particularly where excellent weather resistance, flexibility, and smooth film formation are required.
Q2: Which curing agents is CRYLCOAT 4655-2 typically formulated with?
A: It is commonly crosslinked with hydroxyalkylamide (HAA) hardeners, such as Primid XL-552 or equivalent, to deliver robust performance without TGIC. Compatibility with other HAA-type systems should be verified during formulation development.
Q3: How does CRYLCOAT 4655-2 perform under UV exposure and humidity?
A: As part of a well-balanced formulation, it delivers strong resistance to chalking, gloss loss, and color shift under accelerated and natural weathering conditions—making it suitable for architectural and industrial applications exposed to demanding outdoor environments.
Q4: Is CRYLCOAT 4655-2 compatible with standard powder coating processing equipment?
A: Yes—it exhibits good melt flow behavior and extrusion stability on conventional twin-screw extruders, and supports efficient electrostatic spray application with consistent transfer efficiency and film uniformity.
Contact With Us:
E-mail: wangxingqiang@ericwchem.com
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Building A1, Jiete Industrial Park, Huangpu District, Guangzhou City, Guangdong Province, China
