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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, cleaning agents, and mild acids.
Good compatibility with standard TGIC and hydroxyalkylamide (HAA) curing agents.
Optimized melt viscosity for efficient extrusion and consistent powder coating film formation.
Architectural aluminum extrusions (e.g., window frames, curtain walls).
Automotive exterior trim and non-under-hood components.
Outdoor furniture and garden equipment coatings.
Electrical enclosures and telecom cabinets requiring durable finishes.
General industrial metal parts exposed to ambient or mildly aggressive environments.
| Chemical Type | Carboxyl-functional saturated polyester |
| Product Form | Pale yellow to light amber solid chips |
| Appearance | Free-flowing, homogeneous granules |
| Acid Value (mg KOH/g) | 28–32 |
| Gardner Color | ≤ 3 |
| Melt Viscosity (200 °C, Pa·s) | 1500–2500 |
| Glass Transition Temperature (°C) | 68–72 |
| Primary Applications | Exterior-grade thermosetting powder coatings |
Q1: What is the primary application of CRYLCOAT 4679-0 in powder coating systems?
A: CRYLCOAT 4679-0 is a carboxyl-functional polyester resin specifically designed for use in TGIC-free, high-gloss, exterior-grade thermosetting powder coatings—particularly where excellent weather resistance, mechanical durability, and smooth film formation are required.
Q2: Which curing agents is CRYLCOAT 4679-0 typically formulated with?
A: This resin is compatible with common TGIC-free crosslinkers such as hydroxyalkylamide (HAA) types, and may also be used with alternative low-TGIC or TGIC-free systems depending on formulation goals. Compatibility testing under actual processing conditions is recommended to optimize cure response and performance.
Q3: How does CRYLCOAT 4679-0 perform in terms of UV resistance and gloss retention?
A: As a high-purity, aromatic-aliphatic hybrid polyester, CRYLCOAT 4679-0 delivers robust UV stability and long-term gloss retention in outdoor applications—making it suitable for architectural and industrial metal substrates exposed to demanding environmental conditions.
Q4: Is CRYLCOAT 4679-0 suitable for low-cure or energy-efficient powder coating processes?
A: While optimized for standard curing cycles (e.g., 200 °C/10–15 min), CRYLCOAT 4679-0 can be adapted to lower-temperature cure profiles through formulation adjustments—including selection of reactive crosslinkers and catalysts—though full performance validation is advised for each specific process window.
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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
