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High-solids, low-viscosity unsaturated polyester resin for improved formulation flexibility and reduced VOC emissions.
Excellent compatibility with styrene and common reactive diluents, enabling broad crosslinking efficiency.
Good mechanical strength and chemical resistance in cured laminates, suitable for demanding end-use environments.
Consistent reactivity profile ensures reliable gel time control and reproducible cure kinetics in industrial processing.
Optimized for ambient and elevated temperature curing systems, supporting both hand lay-up and spray-up manufacturing methods.
Fiberglass-reinforced plastic (FRP) tanks and piping for chemical storage and transport.
Marine hulls, decks, and structural components requiring dimensional stability and weather resistance.
Transportation panels and body parts for buses, railcars, and recreational vehicles.
Industrial grating, ductwork, and corrosion-resistant linings in wastewater and process facilities.
Architectural cladding and decorative molded products with high surface quality requirements.
| Chemical Type | Unsaturated polyester resin |
| Product Form | Liquid |
| Appearance | Clear to pale yellow viscous liquid |
| Primary Applications | FRP laminates, marine composites, industrial corrosion protection |
| Key Features | High solids, low viscosity, styrene-compatible, ambient/elevated cure |
| Benefits | Reduced VOC, efficient reinforcement wet-out, consistent cure performance |
| Storage Stability | ≥6 months at 20–25°C in sealed original container |
| Recommended Styrene Content | 30–35 wt% (for optimal processing and properties) |
Q1: What is the primary application area for SETAPOLL SP289?
A: SETAPOLL SP289 is a specialty unsaturated polyester resin designed primarily for high-performance powder coating systems, especially where excellent flow, leveling, and mechanical durability are required—such as in architectural, appliance, and industrial metal finishing applications.
Q2: Is SETAPOLL SP289 compatible with standard powder coating curing agents?
A: Yes, it is formulated to be compatible with common curing agents used in thermosetting powder coatings, including triglycidyl isocyanurate (TGIC) and hydroxyalkyl amide (HAA) systems. Compatibility and reactivity should be verified under actual formulation and curing conditions.
Q3: How does SETAPOLL SP289 contribute to film formation and surface appearance?
A: Its molecular structure supports low melt viscosity and balanced reactivity, promoting uniform film formation, reduced orange peel, and enhanced gloss retention—particularly beneficial in smooth, high-aesthetic finish requirements.
Q4: What storage conditions are recommended for optimal shelf life?
A: Store in original sealed containers at temperatures between 10–25 °C, away from direct sunlight and moisture. Prolonged exposure to elevated temperatures or humidity may affect viscosity and reactivity over time.
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E-mail: wangxingqiang@ericwchem.com
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