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High-gloss, excellent flow and leveling for smooth, defect-free coatings.
Outstanding weather resistance and UV stability for long-term outdoor performance.
Good chemical resistance to solvents, acids, and household cleaning agents.
Optimized for TGIC-free curing systems, supporting sustainable powder coating formulations.
Consistent batch-to-batch reproducibility and reliable melt viscosity behavior.
Architectural aluminum extrusions (e.g., window frames, façade panels).
Outdoor furniture and garden equipment coatings.
Agricultural and construction machinery components.
Street lighting fixtures and traffic infrastructure elements.
Consumer appliances requiring durable, aesthetic finishes.
| Chemical Type | Carboxyl-functional saturated polyester resin |
| Product Form | Free-flowing white to off-white granules |
| Appearance | Homogeneous granular solid |
| Acid Value (mg KOH/g) | 27–31 |
| Gardner Color (on 50% solution in MEK) | ≤ 2 |
| Melt Viscosity (Pa·s at 200 °C) | 3.5–5.5 |
| Softening Point (°C, Ring & Ball) | 68–74 |
| Primary Applications | Exterior-grade TGIC-free and HAA-cured powder coatings |
Q1: What is the primary application of CRYLCOAT S 03641 in powder coatings?
A: CRYLCOAT S 03641 is a carboxyl-functional polyester resin designed for use as a binder in TGIC-free and HAA-cured architectural and industrial powder coatings, offering good flow, mechanical durability, and weather resistance.
Q2: Is CRYLCOAT S 03641 compatible with standard crosslinkers used in powder coating systems?
A: Yes — it is formulated for compatibility with common hydroxyl- and glycidyl-functional crosslinkers, including β-hydroxyalkyl amides (HAA) and triglycidyl isocyanurate (TGIC), enabling flexible curing system design.
Q3: How does CRYLCOAT S 03641 perform under outdoor exposure conditions?
A: As a medium-to-high molecular weight polyester with optimized aromatic/aliphatic balance, it delivers robust UV stability and gloss retention in exterior-grade powder coatings, particularly when combined with appropriate pigments and stabilizers.
Q4: What are the recommended storage conditions for this resin?
A: Store in original unopened packaging in a cool, dry, and well-ventilated area, away from direct sunlight and sources of heat or ignition. Prolonged exposure to high humidity or temperature fluctuations may affect handling properties.
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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
