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Excellent mechanical strength and dimensional stability after curing.
Good compatibility with standard MEKP initiators and low-profile additives.
Low viscosity for enhanced fiber wet-out and improved mold filling in composite processing.
Superior chemical resistance to dilute acids, alkalis, and common solvents.
Consistent batch-to-batch performance ensured by Chang Chun’s stringent quality control system.
Fiberglass-reinforced plastic (FRP) tanks and vessels for chemical storage.
Pultruded profiles including structural beams, ladder rails, and grating.
Sheet molding compound (SMC) for automotive under-hood components.
Centrifugally cast pipes and fittings for water and wastewater infrastructure.
Marine deck components and recreational boat hull reinforcements.
| Chemical Type | Orthophthalic unsaturated polyester resin |
| Product Form | Liquid, ready-to-use |
| Appearance | Clear to pale yellow transparent liquid |
| Viscosity (25°C, mPa·s) | 250–350 |
| Gel Time (with 1.0% MEKP, 25°C, min) | 12–18 |
| Solid Content (wt%) | 99.5–100.0 |
| Density (25°C, g/cm³) | 1.12–1.15 |
| Reactive Diluent | Styrene (35–40 wt%) |
Q1: What are the primary application areas for ETERSET 2306?
A: ETERSET 2306 is widely used in fiberglass-reinforced plastic (FRP) applications such as tanks, pipes, and structural profiles, as well as in sheet molding compound (SMC), bulk molding compound (BMC), and gel coats for marine and construction industries.
Q2: How does ETERSET 2306 compare to standard orthophthalic resins in terms of mechanical performance?
A: ETERSET 2306 offers enhanced toughness and improved impact resistance compared to conventional orthophthalic unsaturated polyester resins, while maintaining good processability and surface finish in both hand lay-up and compression molding processes.
Q3: Which initiators and accelerators are typically compatible with this resin?
A: ETERSET 2306 is compatible with common organic peroxides such as methyl ethyl ketone peroxide (MEKP) and benzoyl peroxide (BPO), and works effectively with cobalt-based accelerators. Optimal curing systems should be selected based on processing method and ambient conditions.
Q4: Is ETERSET 2306 suitable for low-VOC or high-solids formulations?
A: Yes — ETERSET 2306 exhibits favorable viscosity characteristics and can be formulated into lower-VOC systems when combined with reactive diluents or optimized styrene content, supporting compliance with evolving environmental and occupational health requirements.
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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
