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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.
Excellent chemical resistance to solvents, cleaning agents, and mild acids.
Good compatibility with standard TGIC and hydroxyalkylamide (HAA) curing agents.
Optimized melt viscosity for efficient extrusion and consistent powder coating film formation.
Architectural aluminum extrusions (e.g., window frames, curtain walls).
Automotive exterior trim and under-hood components.
Outdoor furniture and garden equipment.
Industrial metal enclosures and electrical cabinets.
Consumer appliances requiring durable, decorative finishes.
| Chemical Type | Carboxyl-functional saturated polyester |
| Product Form | Pale yellow to light amber solid granules |
| Appearance | Free-flowing granular solid |
| Acid Value (mg KOH/g) | 27–31 |
| Gardner Color (10% w/w in MEK) | ≤ 2 |
| Melt Viscosity (200 °C, Pa·s) | 40–60 |
| Softening Point (°C, ASTM E28) | 78–84 |
| Primary Applications | Exterior-grade thermosetting powder coatings |
Q1: What is the primary application of CRYLCOAT 2618-3 in powder coating systems?
A: CRYLCOAT 2618-3 is a carboxyl-functional polyester resin designed for use as a binder 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 2618-3 compatible with?
A: This resin is formulated to react efficiently with standard epoxy-functional crosslinkers such as glycidyl ester (e.g., Primid XL-552) or triglycidyl isocyanurate (TGIC), enabling robust cure profiles across conventional and low-temperature baking conditions.
Q3: How does CRYLCOAT 2618-3 contribute to weathering performance in finished coatings?
A: Its molecular structure provides inherent UV stability and hydrolytic resistance, supporting long-term gloss retention and color stability under accelerated and natural outdoor exposure—making it suitable for architectural and industrial applications demanding extended service life.
Q4: Is CRYLCOAT 2618-3 suitable for low-cure or energy-efficient powder formulations?
A: Yes—when paired with appropriate crosslinkers and catalysts, CRYLCOAT 2618-3 enables full cure at reduced temperatures (e.g., 160–180 °C), supporting energy-saving manufacturing without compromising film integrity or functional performance.
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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
