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High-gloss, excellent flow and leveling for premium surface appearance.
Outstanding weather resistance and UV stability for long-term outdoor durability.
Excellent chemical resistance to solvents, acids, and alkalis in cured coatings.
Optimized reactivity with TGIC-free curing systems for low-bake and sustainable formulations.
Low viscosity enabling high-solids formulation and improved transfer efficiency.
Architectural aluminum extrusions and curtain wall systems.
Automotive exterior trim and non-structural components.
Outdoor furniture and garden equipment coatings.
Industrial metal furniture and office equipment.
General-purpose coil and pre-finished metal applications.
| Chemical Type | Carboxyl-functional saturated polyester |
| Product Form | Powder (free-flowing granules) |
| Appearance | White to off-white free-flowing powder |
| Acid Value (mg KOH/g) | 28–32 |
| Number Average Molecular Weight (Mn) | ~2,800–3,200 g/mol |
| Tg (DSC, °C) | 68–72 |
| Primary Applications | High-performance TGIC-free and HAA-cured powder coatings |
| Key Features | Weather resistance, gloss retention, chemical resistance, low-bake compatibility |
Q1: What is the primary application of CRYLCOAT 2665-2 in powder coating formulations?
A: CRYLCOAT 2665-2 is a carboxyl-functional polyester resin specifically designed for use in TGIC-free, high-gloss, and semi-gloss thermosetting powder coatings—particularly where excellent flow, leveling, and long-term weather resistance are required, such as for architectural aluminum extrusions and outdoor metal furniture.
Q2: Which crosslinkers is CRYLCOAT 2665-2 compatible with?
A: This resin is formulated to react efficiently with standard epoxy-functional crosslinkers, including glycidyl ester types (e.g., Primid XL-552), and demonstrates good compatibility with alternative non-TGIC hardeners used in sustainable powder systems.
Q3: How does CRYLCOAT 2665-2 contribute to film formation and appearance properties?
A: Its balanced molecular weight distribution and controlled acid value support superior melt viscosity behavior during curing, resulting in smooth, defect-free films with high gloss retention and minimal orange peel—even on complex substrates and at moderate cure schedules.
Q4: Is CRYLCOAT 2665-2 suitable for indoor applications requiring low VOC and no hazardous air pollutants (HAPs)?
A: Yes—like all CRYLCOAT polyester resins, it contains no solvents, plasticizers, or intentionally added heavy metals, and emits zero VOCs during application and curing, making it compliant with global environmental requirements for indoor and architectural coating systems.
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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
