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High-solids, low-viscosity unsaturated polyester resin for improved application efficiency and reduced VOC emissions.
Excellent mechanical strength and impact resistance in cured composites.
Good compatibility with standard styrene monomers and common peroxide initiators.
Consistent reactivity profile enabling reliable processing across batch and production scales.
Optimized for enhanced surface hardness and gloss retention in finished laminates.
Fiberglass-reinforced plastic (FRP) panels for architectural cladding and façade systems.
Marine deck and hull components requiring dimensional stability and weather resistance.
Transportation interior parts including bus and rail ceiling panels and wall liners.
Industrial tanks and secondary containment structures exposed to mild chemical environments.
Precision-cast composite tooling molds for low-temperature cure processes.
| Chemical Type | Unsaturated polyester resin |
| Product Form | Liquid |
| Appearance | Clear to pale yellow viscous liquid |
| Primary Applications | FRP laminating, casting, and tooling |
| Key Features | High solids content, low styrene demand, good thixotropy control |
| Benefits | Reduced shrinkage, improved fiber wet-out, consistent gel time |
| Storage Stability | ≥6 months at 20–25°C in sealed containers |
| Recommended Initiator | Methyl ethyl ketone peroxide (MEKP) |
Q1: What is the primary function of SETAPOLL SP125 in coating formulations?
A: SETAPOLL SP125 is a low-viscosity, reactive polyester resin designed to serve as a co-resin or modifier in thermosetting coil and general industrial coatings. It enhances flexibility, impact resistance, and intercoat adhesion while maintaining good chemical resistance and gloss retention.
Q2: Is SETAPOLL SP125 compatible with common crosslinkers used in polyester-based systems?
A: Yes — it is formulated for compatibility with standard amino crosslinkers such as melamine-formaldehyde resins, and can also be used in combination with isocyanate or epoxy curing agents depending on the system design and performance requirements.
Q3: How does SETAPOLL SP125 contribute to film formation and cure behavior?
A: Its low viscosity and reactive functionality support excellent flow and leveling, while its molecular structure promotes efficient crosslinking during thermal cure. This helps achieve balanced hardness development and substrate coverage without excessive brittleness.
Q4: Can SETAPOLL SP125 be used in high-solids or low-VOC coating systems?
A: Yes — its inherently low viscosity allows formulators to reduce solvent demand, supporting the development of high-solids and lower-VOC industrial coating systems without sacrificing application properties or final film performance.
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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
