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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.
Excellent chemical resistance to solvents, acids, and household cleaners.
Optimized reactivity for efficient curing with TGIC-free crosslinkers.
Low melt viscosity enabling smooth electrostatic powder coating application.
Architectural aluminum extrusions (e.g., window frames, curtain walls).
Automotive exterior trim and under-hood components.
Outdoor furniture and garden equipment coatings.
Electrical enclosures and industrial control cabinets.
Consumer appliances requiring durable, decorative finishes.
| Chemical Type | Carboxyl-functional saturated polyester |
| Product Form | Pale yellow to light amber solid granules |
| Appearance | Free-flowing, homogeneous granules |
| Acid Value (mg KOH/g) | 27–31 |
| Melt Viscosity (Pa·s at 200 °C) | 4,500–6,500 |
| Gardner Color (on 50% w/w solution in MEK) | ≤ 2 |
| Primary Applications | TGIC-free and HAA-cured architectural & industrial powder coatings |
| Key Features | Weather durability, high gloss retention, low curing temperature sensitivity |
Q1: What is the primary application of CRYLCOAT 2658-3 in powder coating formulations?
A: CRYLCOAT 2658-3 is a carboxyl-functional polyester resin specifically designed for use in TGIC-free, high-gloss, and durable thermosetting powder coatings—particularly suited for indoor architectural and general-purpose decorative applications where excellent flow, leveling, and mechanical performance are required.
Q2: Is CRYLCOAT 2658-3 compatible with common powder coating crosslinkers?
A: Yes, it is formulated to react efficiently with standard epoxy-functional crosslinkers such as triglycidyl isocyanurate (TGIC) and hydroxyalkyl amide (HAA) systems, offering flexibility in curing chemistry selection depending on regulatory and performance requirements.
Q3: How does CRYLCOAT 2658-3 contribute to film formation and appearance properties?
A: Its balanced molecular weight distribution and controlled acid value support excellent melt viscosity behavior during cure, resulting in smooth, high-gloss films with strong resistance to orange peel and good substrate coverage—even over complex geometries.
Q4: What are the recommended storage conditions to maintain resin stability?
A: Store in original sealed containers in a cool, dry place away from direct sunlight and sources of heat. Prolonged exposure to elevated temperatures or humidity may affect handling characteristics and shelf life.
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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
