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High-gloss, excellent flow and leveling for smooth, defect-free cured films.
Outstanding weather resistance and UV stability for long-term outdoor performance.
Good chemical resistance to solvents, cleaning agents, and mild acids.
Balanced reactivity with TGIC, enabling robust curing across standard powder coating oven profiles.
Low melt viscosity supports efficient electrostatic application and high transfer efficiency.
Architectural aluminum extrusions for façades and curtain walls.
Outdoor furniture and garden equipment coatings.
Agricultural and construction machinery components.
Street lighting fixtures and traffic infrastructure elements.
Residential and commercial fencing and railings.
| Chemical Type | Carboxyl-functional saturated polyester |
| Product Form | Free-flowing granular solid |
| Appearance | Off-white to light beige granules |
| Acid Value (mg KOH/g) | 27–33 |
| Gardner Color (meq/100 g) | ≤ 2.0 |
| Melt Viscosity (Pa·s at 200 °C) | 2,500–4,000 |
| Softening Point (°C, ASTM E28) | 78–85 |
| Primary Applications | TGIC-cured outdoor powder coatings |
Q1: What is the primary application of CRYLCOAT 2503-2 in powder coating formulations?
A: CRYLCOAT 2503-2 is a carboxyl-functional polyester resin designed for use in TGIC-free, high-gloss, decorative powder coatings—particularly where excellent flow, leveling, and UV resistance are required, such as for indoor and semi-outdoor architectural and general industrial applications.
Q2: Is CRYLCOAT 2503-2 compatible with standard epoxy-based curing agents?
A: No—CRYLCOAT 2503-2 is formulated for use with triglycidyl isocyanurate (TGIC) or alternative TGIC-free crosslinkers such as hydroxyalkyl amides (HAA), not epoxy resins. Its carboxyl functionality requires matching with appropriate epoxy-equivalent or multifunctional curing agents.
Q3: How does CRYLCOAT 2503-2 perform in terms of weathering and gloss retention?
A: As a medium-to-high molecular weight, aromatic-aliphatic polyester, CRYLCOAT 2503-2 delivers good long-term gloss retention and resistance to chalking under natural and accelerated UV exposure—making it suitable for applications demanding moderate exterior durability without requiring fluoropolymer-grade performance.
Q4: What are the recommended storage conditions to maintain resin stability?
A: Store in original sealed containers in a cool, dry, and well-ventilated area, away from direct sunlight and sources of heat or ignition. Prolonged exposure to high humidity or temperatures above 35 °C may affect handling properties and shelf life.
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E-mail: wangxingqiang@ericwchem.com
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