High-gloss, excellent flow and leveling for premium aesthetic finish.
Outstanding weather resistance and UV stability for long-term outdoor performance.
Good chemical resistance to solvents, detergents, and household cleaners.
Optimized for TGIC-free curing systems, supporting sustainable powder coating formulations.
Consistent batch-to-batch reproducibility and reliable melt viscosity control.
Architectural aluminum extrusions for façades and curtain walls.
Outdoor furniture and garden equipment coatings.
Agricultural and construction machinery components.
Street furniture including lamp posts, bus shelters, and signage.
Consumer appliances requiring durable, decorative exterior 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) | 28–32 |
| Gardner Color (10% in MIBK) | ≤ 3 |
| Melt Viscosity (180°C, Pa·s) | 3.5–5.0 |
| Softening Point (°C, Ring & Ball) | 78–84 |
| Primary Applications | High-durability outdoor powder coatings |
Q1: What is the primary application of CRYLCOAT 2664-3 in powder coatings?
A: CRYLCOAT 2664-3 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 2664-3 typically crosslinked with?
A: This resin is formulated to react efficiently with standard epoxy-functional hardeners, including glycidyl ester-based systems such as Primid XL-552 and other non-TGIC alternatives commonly used in premium architectural and industrial powder coatings.
Q3: How does CRYLCOAT 2664-3 perform under UV exposure and outdoor conditions?
A: As part of Allnex’s CRYLCOAT® portfolio for exterior applications, 2664-3 delivers robust UV stability and long-term gloss retention when properly formulated and cured—making it suitable for façade elements, garden furniture, and other products exposed to demanding climatic conditions.
Q4: Is CRYLCOAT 2664-3 compatible with common flow and leveling additives?
A: Yes—it exhibits good compatibility with widely used silicone- and acrylic-based flow agents, degassing aids, and texturing additives, supporting formulation flexibility for both smooth and structured finishes without compromising storage stability.
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