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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, acids, and household cleaners.
Good mechanical properties including hardness, flexibility, and impact resistance.
Designed for low-cure powder coatings — enables efficient curing at 180–200 °C / 10–15 min.
Architectural aluminum extrusions (window frames, curtain walls).
Outdoor furniture and garden equipment coatings.
Automotive exterior trim and non-under-hood components.
Consumer electronics enclosures requiring durable decorative finishes.
General industrial metal parts exposed to harsh environmental conditions.
| Chemical Type | Carboxyl-functional saturated polyester |
| Product Form | Free-flowing white to off-white granules |
| Appearance | Homogeneous granular solid |
| Acid Value (mg KOH/g) | 27–33 |
| Gel Time (at 200 °C) | 1.5–2.5 minutes |
| Melt Viscosity (at 150 °C) | 4,000–6,000 cP |
| Primary Applications | Standard TGIC-free and HAA-cured powder coatings |
| Key Features | High reactivity, low melt viscosity, excellent storage stability |
Q1: What is the primary application of CRYLCOAT 1690-0 in powder coatings?
A: CRYLCOAT 1690-0 is a low-Tg, carboxyl-functional polyester resin specifically designed for use in TGIC-free, high-gloss, and semi-gloss thermosetting powder coating systems—particularly where excellent flow, leveling, and mechanical flexibility are required.
Q2: Is CRYLCOAT 1690-0 compatible with common crosslinkers used in powder coatings?
A: Yes—it is fully compatible with standard epoxy-functional curing agents such as triglycidyl isocyanurate (TGIC), hydroxyalkyl amide (HAA), and alternative epoxy resins. Compatibility and cure response should be verified experimentally within the final formulation.
Q3: How does CRYLCOAT 1690-0 contribute to film formation and surface appearance?
A: Its low glass transition temperature and tailored molecular architecture promote superior melt viscosity control, enabling outstanding flow, reduced orange peel, and high-gloss finish development—especially in thin-film applications and complex substrates.
Q4: Can CRYLCOAT 1690-0 be used in outdoor durable powder coatings?
A: While it offers good initial gloss retention and flexibility, CRYLCOAT 1690-0 is primarily optimized for indoor or moderate-weather applications. For demanding exterior exposure, Allnex recommends pairing it with UV-stabilized additives or selecting higher-weatherability resins from the CRYLCOAT portfolio.
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E-mail: wangxingqiang@ericwchem.com
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