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High-gloss, excellent flow and leveling for premium aesthetic finish.
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 triglycidyl isocyanurate (TGIC) or hydroxyalkyl amide (HAA) hardeners.
Consistent batch-to-batch reproducibility ensuring reliable coating process control.
Architectural aluminum extrusions for curtain walls and window frames.
Automotive exterior trim and decorative components.
Outdoor furniture and garden equipment coatings.
Industrial metal furniture and signage.
Appliance front panels requiring durable, high-gloss finishes.
| Chemical Type | Carboxyl-functional saturated polyester |
| Product Form | Free-flowing white to off-white powder |
| Appearance | Free-flowing granular solid |
| Acid Value (mg KOH/g) | 28–32 |
| Gardner Color | ≤ 2 |
| Glass Transition Temperature (°C) | 62–66 |
| Particle Size (D50, μm) | 30–35 |
| Primary Applications | Exterior-grade powder coatings for architectural and industrial metals |
Q1: What is the primary application of CRYLCOAT E 04403 in powder coatings?
A: CRYLCOAT E 04403 is a carboxyl-functional polyester resin specifically designed for use in TGIC-free and HAA-cured thermosetting powder coating systems, particularly where high gloss, excellent flow, and good mechanical properties are required in architectural and general industrial applications.
Q2: How does CRYLCOAT E 04403 perform in terms of weather resistance and UV stability?
A: As a standard aromatic polyester, CRYLCOAT E 04403 offers good overall durability but is not formulated for extended outdoor exposure without additional UV stabilizers or topcoats; it is typically recommended for indoor or sheltered exterior applications where long-term chalking or gloss retention under intense UV is not the primary requirement.
Q3: Is CRYLCOAT E 04403 compatible with common curing agents used in powder coatings?
A: Yes — it is fully compatible with hydroxyalkyl amide (HAA) crosslinkers such as Primid® XL-552 and other industry-standard HAA types, as well as alternative non-TGIC curing agents; compatibility with specific additives and pigments should be verified during formulation development.
Q4: What are the typical handling and storage recommendations for this resin?
A: Store in original sealed containers in a cool, dry place away from direct sunlight and sources of heat or ignition; avoid prolonged exposure to humidity, as moisture absorption may affect melt viscosity and film formation during extrusion and curing.
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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
