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High reactivity with triglycidyl isocyanurate (TGIC) and hydroxyalkyl amides (HAA) curing agents.
Excellent flow and leveling for smooth, high-gloss finishes.
Superior mechanical properties including hardness, flexibility, and impact resistance.
Good weathering resistance suitable for outdoor applications.
Consistent batch-to-batch performance ensuring reliable coating formulation.
Architectural aluminum extrusions and curtain walls.
Automotive exterior trim and under-hood components.
Outdoor furniture and garden equipment coatings.
General industrial metal finishing requiring durability and aesthetics.
Appliance housings exposed to moderate UV and environmental stress.
| Chemical Type | Carboxy-functional saturated polyester |
| Product Form | Free-flowing white to off-white powder |
| Appearance | Free-flowing granular solid |
| Acid Value | 28–32 mg KOH/g |
| Gardner Color | ≤ 2 |
| Melt Viscosity (180°C) | 3,500–4,500 cP |
| 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 2423-1 in powder coating systems?
A: CRYLCOAT 2423-1 is a carboxyl-functional polyester resin specifically designed for use in TGIC-free (triglycidyl isocyanurate-free) thermosetting powder coatings, particularly where high gloss, excellent flow, and good mechanical properties are required — such as in architectural, general industrial, and appliance finishes.
Q2: Is CRYLCOAT 2423-1 compatible with common crosslinkers used in polyester-based powder coatings?
A: Yes, it is formulated to react efficiently with standard epoxy-functional crosslinkers, including glycidyl ether-based hardeners (e.g., Primid XL-552), and demonstrates good compatibility with various curing agents used in TGIC-free systems. Compatibility and cure response should be verified under actual formulation and processing conditions.
Q3: How does CRYLCOAT 2423-1 perform in terms of weather resistance and UV stability?
A: As a saturated polyester resin, CRYLCOAT 2423-1 contributes to good exterior durability and UV resistance in properly formulated powder coatings — especially when combined with suitable pigments, UV absorbers, and HALS stabilizers. Performance depends on full system design and exposure conditions.
Q4: What are typical handling and storage recommendations for this resin?
A: Store in a cool, dry place away from direct sunlight and sources of heat or ignition. Keep containers tightly sealed to prevent moisture absorption and contamination. Avoid prolonged exposure to high humidity or elevated temperatures prior to use, as this may affect flow behavior and reactivity during extrusion and curing.
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