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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.
Good chemical resistance to solvents, cleaning agents, and mild acids.
Optimized reactivity for efficient curing with TGIC-free crosslinkers.
Low melt viscosity enabling smooth extrusion and uniform film formation in powder coating processes.
Architectural aluminum profiles for façades and curtain walls.
Automotive exterior trim and non-under-hood components.
Outdoor furniture and garden equipment coatings.
Consumer electronics enclosures requiring durable, decorative finishes.
Industrial metal furniture and storage systems exposed to ambient conditions.
| Chemical Type | Carboxyl-functional saturated polyester |
| Product Form | Pale yellow to light amber solid flakes |
| Appearance | Free-flowing, homogeneous flakes |
| Acid Value (mg KOH/g) | 27–31 |
| Gardner Color (on 50% w/w solution in MEK) | ≤ 2 |
| Melt Viscosity (200°C, Pa·s) | 1,800–2,400 |
| Softening Point (°C, ASTM E28) | 78–84 |
| Primary Applications | High-performance TGIC-free and HAA-cured powder coatings |
Q1: What is the primary application of CRYLCOAT 4648-0 in powder coatings?
A: CRYLCOAT 4648-0 is a carboxyl-functional polyester resin specifically designed for use in TGIC-free, high-gloss, weather-resistant thermosetting powder coatings—commonly applied to architectural aluminum extrusions, façade panels, and outdoor metal furniture.
Q2: How does CRYLCOAT 4648-0 contribute to coating durability?
A: It delivers excellent UV resistance, gloss retention, and chalking resistance due to its optimized molecular structure and aromatic/aliphatic balance, supporting long-term performance in demanding exterior environments without requiring additional UV stabilizers in standard formulations.
Q3: Is CRYLCOAT 4648-0 compatible with common crosslinkers used in polyester-based powder systems?
A: Yes—it is formulated for reliable reactivity with standard epoxy-functional crosslinkers such as triglycidyl isocyanurate (TGIC) and hydroxyalkyl amide (HAA) curing agents, enabling flexibility in formulating both TGIC-containing and TGIC-free systems.
Q4: What are the recommended storage conditions for this resin?
A: Store in original sealed containers in a cool, dry, well-ventilated area away from direct sunlight and sources of heat or ignition. Prolonged exposure to high humidity or elevated temperatures may affect flow properties and shelf life.
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E-mail: wangxingqiang@ericwchem.com
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