High-gloss, durable finish with excellent flow and leveling characteristics.
Optimized for low-cure powder coating systems (160–180 °C, 10–20 min).
Outstanding weather resistance and UV stability for outdoor applications.
Good mechanical properties including impact resistance and flexibility.
Compatible with standard triglycidyl isocyanurate (TGIC) and hydroxyalkyl amide (HAA) curing agents.
Architectural aluminum extrusions (curtain walls, window frames, façades).
Outdoor furniture and garden equipment coatings.
Agricultural and construction machinery components.
Street lighting fixtures and traffic infrastructure elements.
Consumer appliances requiring high-end aesthetic and long-term durability.
| Chemical Type | Carboxyl-functional saturated polyester |
| Product Form | Free-flowing white to off-white granules |
| Appearance | Homogeneous granular solid |
| Acid Value (mg KOH/g) | 27–31 |
| Gardner Color (on 50% solution in MEK) | ≤ 2 |
| Melt Viscosity (at 200 °C, Pa·s) | 3.5–5.5 |
| Softening Point (°C, Ring & Ball) | 72–78 |
| Primary Applications | Exterior-grade TGIC- and HAA-cured powder coatings |
Q1: What is the primary application of CRYLCOAT 4488-0 in powder coating formulations?
A: CRYLCOAT 4488-0 is a carboxyl-functional polyester resin specifically designed for use in TGIC-free, high-gloss, and durable thermosetting powder coatings—particularly for indoor architectural and general-purpose decorative applications where excellent flow, leveling, and mechanical resistance are required.
Q2: Is CRYLCOAT 4488-0 compatible with standard epoxy-based curing agents?
A: No—CRYLCOAT 4488-0 is formulated for use with hydroxyalkylamide (HAA) crosslinkers, not epoxy resins. It is optimized for HAA-cured systems to deliver balanced reactivity, storage stability, and film performance without TGIC.
Q3: How does CRYLCOAT 4488-0 perform under humid or elevated temperature curing conditions?
A: This resin demonstrates good reactivity and consistent gel time across typical industrial cure schedules (e.g., 180–200 °C for 10–20 minutes), with robust tolerance to moderate variations in humidity and oven dwell time—supporting reliable production throughput and film integrity.
Q4: Can CRYLCOAT 4488-0 be blended with other polyester resins to modify film properties?
A: Yes—formulators may blend CRYLCOAT 4488-0 with complementary carboxyl-functional polyesters to fine-tune flexibility, gloss retention, or weathering response, though compatibility and cure behavior should be verified experimentally for each specific blend ratio and system.
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E-mail: wangxingqiang@ericwchem.com
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