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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 with TGIC-free curing systems for low-bake flexibility.
Consistent batch-to-batch reproducibility supporting reliable industrial coating production.
Architectural aluminum extrusions and curtain wall systems.
Automotive exterior trim and non-structural decorative components.
Outdoor furniture and garden equipment coatings.
Electrical enclosures and telecom infrastructure housings.
| Chemical Type | Carboxyl-functional saturated polyester |
| Product Form | Powder (free-flowing granular solid) |
| Appearance | White to off-white free-flowing powder |
| Acid Value (mg KOH/g) | 28–32 |
| Glass Transition Temperature (°C) | 68–72 |
| Number Average Molecular Weight (g/mol) | ~3,500 |
| Primary Applications | TGIC-free and HAA-cured architectural and industrial powder coatings |
| Key Features | High gloss, UV durability, low-bake compatibility, excellent film formation |
Q1: What is the primary application of CRYLCOAT 2617-3 in powder coatings?
A: CRYLCOAT 2617-3 is a carboxyl-functional polyester resin specifically designed for use in TGIC-free, high-gloss, and durable thermosetting powder coatings—particularly for indoor architectural and general industrial applications where excellent flow, leveling, and mechanical performance are required.
Q2: Is CRYLCOAT 2617-3 compatible with standard epoxy-based curing agents?
A: Yes, CRYLCOAT 2617-3 is formulated to react efficiently with common epoxy-curing co-resins such as triglycidyl isocyanurate (TGIC) alternatives—including hydroxyalkyl amides (HAA)—and exhibits good compatibility with standard epoxy resins used in hybrid systems.
Q3: How does CRYLCOAT 2617-3 perform under accelerated weathering conditions?
A: This resin delivers enhanced UV stability and gloss retention compared to conventional low-Tg polyesters, supporting good long-term exterior durability when properly formulated—though it is primarily recommended for interior or semi-exposed applications unless blended with higher-weatherability resins.
Q4: What are the typical processing considerations during extrusion and curing?
A: CRYLCOAT 2617-3 exhibits good melt viscosity characteristics, enabling smooth extrusion at standard powder coating processing temperatures. It cures effectively within the typical 180–200 °C / 10–20 minute range, offering balanced gel time and flow behavior suitable for automated production lines.
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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
