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High reactivity with triglycidyl isocyanurate (TGIC) for fast-cure powder coatings.
Excellent flow and leveling characteristics to deliver smooth, high-gloss finishes.
Superior mechanical properties including hardness, flexibility, and impact resistance.
Good weathering resistance suitable for indoor and limited outdoor applications.
Consistent batch-to-batch performance ensuring reliable coating formulation stability.
Architectural metal cladding and façade systems.
Office furniture and shelving components.
White goods housings (e.g., refrigerators, washing machines).
Industrial equipment enclosures and control panels.
General-purpose functional and decorative powder coatings.
| Chemical Type | Carboxy-functional saturated polyester resin |
| Product Form | Free-flowing white to off-white granules |
| Appearance | Granular solid, free of lumps or fines |
| Acid Value (mg KOH/g) | 34–38 |
| Melt Viscosity (mPa·s at 180 °C) | 3,500–4,500 |
| Gel Time (sec at 200 °C, with 5% TGIC) | 180–240 |
| Softening Point (°C, Ring & Ball) | 72–78 |
| Key Features | High reactivity, excellent flow, balanced mechanical performance |
Q1: What is the primary application of CRYLCOAT 1620-0 in powder coatings?
A: CRYLCOAT 1620-0 is a carboxyl-functional polyester resin specifically designed for use in TGIC-free, high-gloss, weather-resistant thermosetting powder coatings—commonly applied to architectural aluminum extrusions, façade panels, and outdoor metal furniture.
Q2: Is CRYLCOAT 1620-0 compatible with standard epoxy curing agents?
A: No—CRYLCOAT 1620-0 is formulated for use with hydroxyalkylamide (HAA) crosslinkers, not epoxy-based systems. Its carboxyl functionality and molecular architecture are optimized for HAA cure chemistry to deliver balanced flow, mechanical performance, and UV stability.
Q3: How does CRYLCOAT 1620-0 contribute to weather resistance in finished coatings?
A: As a saturated aromatic polyester, CRYLCOAT 1620-0 provides inherent resistance to UV degradation and chalking. When properly formulated and cured with HAA, it supports excellent long-term gloss retention and color stability under accelerated and natural weathering conditions.
Q4: What handling precautions should be observed during processing?
A: CRYLCOAT 1620-0 is supplied as free-flowing granules. Standard industrial hygiene practices apply: avoid inhalation of dust, ensure adequate ventilation during handling and grinding, and use appropriate personal protective equipment (PPE) such as gloves and safety glasses. Store in a cool, dry place away from direct sunlight and moisture.
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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
