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High reactivity with standard MEKP initiators for rapid gelation and efficient production cycles.
Excellent mechanical strength and dimensional stability after curing, suitable for structural composite parts.
Good resistance to water, weak acids, and alkalis in ambient conditions.
Low viscosity (250–350 mPa·s at 25°C) enabling easy fiber wet-out and high filler loading capacity.
Consistent batch-to-batch quality with controlled acid value and styrene content for reliable processing.
Fiberglass-reinforced plastic (FRP) tanks and chemical storage vessels.
Pultruded profiles for construction and infrastructure reinforcement.
Sheet molding compound (SMC) for automotive body panels and electrical enclosures.
Centrifugal casting pipes for municipal water and wastewater systems.
Marine deck components and boat hull laminates requiring moderate corrosion resistance.
| Chemical Type | Unsaturated polyester resin (orthophthalic-based) |
| Product Form | Liquid, ready-to-use |
| Appearance | Clear to pale yellow viscous liquid |
| Viscosity (25°C) | 280–320 mPa·s |
| Acid Value | 18–22 mg KOH/g |
| Styrene Content | 38–42 wt% |
| Density (25°C) | 1.06–1.08 g/cm³ |
| Gel Time (with 1.0% MEKP, 25°C) | 12–18 minutes |
Q1: What are the key performance characteristics of ETERSET 2517P?
A: ETERSET 2517P is a medium-reactivity unsaturated polyester resin formulated for balanced gel time, mechanical strength, and surface cure. It offers good thixotropy for vertical application, low styrene emission during processing, and reliable compatibility with common peroxide initiators and accelerators.
Q2: Which types of reinforcements and fillers are compatible with this resin?
A: ETERSET 2517P is widely used with chopped strand mats, woven rovings, and continuous filament veils. It also demonstrates good wetting behavior with calcium carbonate, talc, and aluminum trihydrate fillers—though filler loading and dispersion methods should be optimized per end-use requirements.
Q3: How does ETERSET 2517P perform in ambient-cure versus post-cure applications?
A: The resin achieves adequate green strength and surface hardness under standard ambient curing conditions (e.g., MEKP at 1–2% w/w, 23°C). For enhanced thermal stability and chemical resistance, a mild post-cure cycle (e.g., 60–80°C for several hours) is recommended, particularly in structural or high-performance laminates.
Q4: Can ETERSET 2517P be used in marine or corrosion-resistant applications?
A: Yes—it is commonly selected for marine components, FRP tanks, and corrosion-resistant linings due to its inherent resistance to water absorption and moderate chemical exposure. For aggressive environments, it is typically combined with veil layers or barrier coats and validated through application-specific testing.
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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
