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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, acids, and alkaline 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.
Consumer electronics housings 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) | 28–32 |
| Melt Viscosity (Pa·s, 200 °C) | 15–25 |
| Glass Transition Temperature (°C) | 68–72 |
| Primary Applications | TGIC-free and HAA-cured architectural & industrial powder coatings |
| Key Features | Weather durability, high gloss, low-cure reactivity, smooth film formation |
Q1: What is the primary application of CRYLCOAT 1650-2 in powder coatings?
A: CRYLCOAT 1650-2 is a carboxyl-functional polyester resin specifically designed for use in TGIC-free, high-gloss, weather-resistant thermosetting powder coatings—particularly for architectural and industrial exterior applications where long-term UV stability and mechanical durability are required.
Q2: Which crosslinkers is CRYLCOAT 1650-2 compatible with?
A: This resin is formulated to react efficiently with standard epoxy-functional crosslinkers such as triglycidyl isocyanurate (TGIC) and alternative non-TGIC systems like hydroxyalkyl amides (HAA), enabling flexible formulation options for regulatory-compliant and performance-driven powder coatings.
Q3: How does CRYLCOAT 1650-2 contribute to film formation and surface appearance?
A: Its balanced molecular weight distribution and controlled acid value support excellent flow, leveling, and edge coverage during curing, resulting in smooth, high-gloss finishes with strong resistance to orange peel and cratering under typical application conditions.
Q4: Is CRYLCOAT 1650-2 suitable for low-cure or energy-efficient powder coating processes?
A: While optimized for standard cure schedules (e.g., 200 °C/10 min), CRYLCOAT 1650-2 demonstrates good reactivity at reduced temperatures and can be adapted for low-bake formulations when combined with appropriate catalysts and crosslinkers—subject to full system evaluation.
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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
