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High-gloss, durable finish with excellent flow and leveling characteristics.
Optimized for low-cure temperature applications (typically 160–180 °C).
Excellent chemical resistance to solvents, cleaning agents, and household chemicals.
Good flexibility and impact resistance on metal substrates.
Compatible with standard triglycidyl isocyanurate (TGIC) and hydroxyalkyl amide (HAA) curing agents.
Architectural aluminum extrusions for façades and window frames.
Appliance coatings for refrigerators, ovens, and washing machines.
Outdoor furniture and garden equipment coatings.
General industrial metal finishing for office furniture and shelving.
Light-duty automotive trim and under-hood components.
| Chemical Type | Carboxyl-functional saturated polyester |
| Product Form | Powder coating resin (free-flowing granular solid) |
| Appearance | Off-white to light beige granules |
| Acid Value | 28–32 mg KOH/g |
| Gardner Color | ≤ 3 |
| Melt Viscosity (180 °C) | 45–65 Pa·s |
| Particle Size (D50) | 25–35 µm |
| Storage Stability | Stable at ≤ 25 °C for ≥ 6 months in sealed container |
Q1: What is the primary application of CRYLCOAT 1680-6 in powder coating formulations?
A: CRYLCOAT 1680-6 is a carboxyl-functional polyester resin 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: Is CRYLCOAT 1680-6 compatible with common epoxy-based curing agents?
A: No—CRYLCOAT 1680-6 is specifically formulated for use with hydroxyalkyl amide (HAA) crosslinkers, such as Primid XL-552 or equivalent. It is not intended for epoxy-cured systems, which require glycidyl-functional resins.
Q3: How does CRYLCOAT 1680-6 perform under UV exposure and humid conditions?
A: As part of Allnex’s high-performance exterior polyester portfolio, CRYLCOAT 1680-6 delivers robust resistance to chalking, gloss loss, and color shift when properly formulated and cured—making it suitable for architectural and outdoor industrial applications exposed to prolonged sunlight and moisture.
Q4: What are the recommended storage conditions for this resin?
A: Store in a cool, dry place below 30 °C (86 °F), away from direct sunlight and sources of heat or ignition. Keep containers tightly sealed to prevent moisture absorption and maintain optimal reactivity during processing.
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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
