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High-gloss, excellent flow and leveling for smooth, defect-free coatings.
Outstanding weather resistance and UV stability for long-term outdoor performance.
Good chemical resistance to solvents, acids, and household cleaning agents.
Optimized for TGIC-free curing systems, supporting low-VOC and sustainable formulations.
Consistent batch-to-batch reproducibility and reliable processing in coil and appliance coating lines.
Architectural metal cladding and roofing panels.
Appliance exteriors including refrigerators, washing machines, and ovens.
Automotive trim and non-under-hood decorative components.
General industrial metal finishing for durable equipment housings.
Outdoor furniture and garden equipment coatings.
| Chemical Type | Carboxyl-functional saturated polyester |
| Product Form | Free-flowing white to off-white granules |
| Appearance | Granular, homogeneous particles |
| Acid Value (mg KOH/g) | 28–32 |
| Melt Viscosity (180°C, mPa·s) | 3,500–4,500 |
| Gardner Color | ≤ 2 |
| Softening Point (°C) | 78–84 |
| Moisture Content (% w/w) | ≤ 0.3 |
Q1: What is the primary application of CRYLCOAT 2640-3 in powder coatings?
A: CRYLCOAT 2640-3 is a carboxyl-functional polyester resin specifically designed for use in TGIC-free, high-gloss, and durable thermosetting powder coatings—particularly for indoor and moderate outdoor applications such as office furniture, shelving, and general metalware.
Q2: Which crosslinkers is CRYLCOAT 2640-3 compatible with?
A: This resin is formulated to react efficiently with standard epoxy-functional crosslinkers, including glycidyl ether-based hardeners (e.g., triglycidyl isocyanurate alternatives), and exhibits good compatibility with various co-resins and additives commonly used in TGIC-free powder systems.
Q3: How does CRYLCOAT 2640-3 perform in terms of storage stability and melt viscosity?
A: It offers excellent storage stability under recommended conditions (cool, dry environment) and delivers a balanced melt flow profile—supporting smooth film formation and good edge coverage without excessive sagging during curing.
Q4: Is CRYLCOAT 2640-3 suitable for low-cure or energy-efficient powder coating processes?
A: Yes—it is engineered to achieve full cure at standard industrial bake schedules (e.g., 180–200 °C for 10–15 minutes) and demonstrates good reactivity at the lower end of this range, supporting formulations targeting reduced energy consumption without compromising 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
