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High-gloss, excellent flow and leveling for smooth, defect-free cured films.
Outstanding weather resistance and UV stability for long-term outdoor performance.
Good chemical resistance to solvents, detergents, and mild acids after curing.
Compatible with standard TGIC and hydroxyalkylamide (HAA) curing agents.
Optimized molecular weight distribution for balanced reactivity and storage stability.
Architectural aluminum extrusions for façades and window frames.
Automotive exterior trim and under-hood components requiring durability.
Outdoor furniture and garden equipment coatings.
General industrial metal finishing for appliances and HVAC units.
Coil coating topcoats where gloss retention and color stability are critical.
| Chemical Type | Carboxyl-functional saturated polyester |
| Product Form | Free-flowing granular solid |
| Appearance | White to off-white granules |
| Acid Value (mg KOH/g) | 28–32 |
| Number Average Molecular Weight (Mn) | ~2,800–3,200 |
| Softening Point (°C, ASTM E28) | 78–84 |
| Primary Applications | Thermosetting powder coatings (TGIC & HAA systems) |
| Key Features | Weather resistance, high gloss, excellent film formation |
Q1: What is the primary application of CRYLCOAT 2592-0 in powder coatings?
A: CRYLCOAT 2592-0 is a low-Tg, carboxyl-functional polyester resin specifically designed as a reactive diluent or flow/leveling modifier in thermosetting powder coating systems, particularly for improving film formation and edge coverage in low-cure or ultra-low-cure formulations.
Q2: How does CRYLCOAT 2592-0 differ from standard carboxyl-terminated polyesters used in TGIC or HAA systems?
A: Unlike conventional high-acid-value polyesters intended as the main binder, CRYLCOAT 2592-0 features a significantly lower acid value and glass transition temperature, enabling it to act as a viscosity-reducing co-resin that enhances melt flow without compromising crosslink density when blended with standard binders.
Q3: Is CRYLCOAT 2592-0 compatible with common powder coating crosslinkers?
A: Yes — it is formulated to be compatible with standard hydroxyl- and epoxy-reactive crosslinkers, including triglycidyl isocyanurate (TGIC), hydroxyalkyl amides (HAA), and glycidyl ester hardeners, though optimal performance is achieved when matched with low-cure-cure chemistries.
Q4: What handling or storage precautions should be observed?
A: Store in a cool, dry place below 30 °C, away from direct sunlight and moisture. Due to its low Tg, prolonged exposure to elevated temperatures may lead to particle agglomeration; therefore, maintain stable ambient conditions and use within recommended shelf life after opening.
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E-mail: wangxingqiang@ericwchem.com
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