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High reactivity with triglycidyl isocyanurate (TGIC), enabling fast-cure powder coatings.
Excellent flow and leveling properties for smooth, high-gloss finishes.
Superior mechanical performance including impact resistance and flexibility.
Good UV stability and weather resistance for outdoor applications.
Low melt viscosity supports efficient electrostatic application and film formation.
Architectural aluminum extrusions for curtain walls and window frames.
Outdoor furniture and garden equipment coatings.
Agricultural and construction machinery components.
Street lighting fixtures and traffic infrastructure elements.
General-purpose industrial powder coatings requiring durability and gloss retention.
| Chemical Type | Carboxy-functional saturated polyester |
| Product Form | Free-flowing white to off-white granules |
| Appearance | Granular solid, free of lumps or dust |
| Acid Value (mg KOH/g) | 28–32 |
| Gardner Color | ≤ 2 |
| Melt Viscosity (cP, 180°C) | 4,500–6,500 |
| Softening Point (°C, Ring & Ball) | 68–74 |
| Primary Applications | TGIC-cured powder coatings for exterior use |
Q1: What is the primary application of CRYLCOAT 2650-3 in powder coating systems?
A: CRYLCOAT 2650-3 is a carboxyl-functional polyester resin specifically designed for use in TGIC-free, high-gloss, exterior-grade powder coatings—particularly where excellent weather resistance, mechanical durability, and smooth film formation are required.
Q2: Which curing agents is CRYLCOAT 2650-3 typically crosslinked with?
A: This resin is formulated to react efficiently with standard epoxy-functional hardeners such as glycidyl ester or triglycidyl isocyanurate (TGIC-free) co-reactants, enabling robust cure profiles under typical powder coating conditions (e.g., 180–200 °C for 10–20 minutes).
Q3: How does CRYLCOAT 2650-3 perform in terms of UV stability and chalking resistance?
A: As a high-purity, low-acid-value polyester, CRYLCOAT 2650-3 delivers strong long-term UV resistance and minimal chalk formation when properly formulated—making it suitable for demanding architectural and industrial outdoor applications.
Q4: Is CRYLCOAT 2650-3 compatible with common flow and leveling additives used in powder coatings?
A: Yes—CRYLCOAT 2650-3 exhibits good compatibility with widely used rheology modifiers, degassing agents, and surface control additives, supporting formulation flexibility without compromising storage stability or melt viscosity behavior.
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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
