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Excellent mechanical strength and dimensional stability after curing.
Good balance of reactivity and pot life for reliable processing in open-mold and RTM applications.
Superior resistance to water, alkalis, and mild acids in cured form.
Low styrene emission profile, supporting improved workplace safety and regulatory compliance.
Consistent batch-to-batch performance with strict quality control under ISO 9001 certified manufacturing.
Fiberglass-reinforced plastic (FRP) tanks and chemical storage vessels.
Marine components including boat hulls, decks, and structural panels.
Industrial corrosion-resistant ducting and scrubber systems.
Transportation parts such as truck body panels and railway interior components.
Architectural cladding, façade elements, and decorative molded products.
| Chemical Type | Unsaturated polyester resin (orthophthalic-based) |
| Product Form | Liquid, ready-to-use |
| Appearance | Clear to pale yellow, homogeneous liquid |
| Viscosity (25°C) | 350–450 mPa·s |
| Gel Time (1% MEKP, 25°C) | 12–18 minutes |
| Reactive Diluent | Styrene (~38–42 wt%) |
| Density (25°C) | 1.06–1.08 g/cm³ |
| Acid Value | 16–20 mg KOH/g |
Q1: What are the primary application areas for ETERSET 2307?
A: ETERSET 2307 is widely used in fiberglass-reinforced plastic (FRP) applications such as tanks, pipes, and structural profiles, as well as in sheet molding compound (SMC) and bulk molding compound (BMC) formulations where good mechanical strength, dimensional stability, and moderate chemical resistance are required.
Q2: How does ETERSET 2307 compare to general-purpose unsaturated polyester resins in terms of reactivity and gel time?
A: ETERSET 2307 exhibits a balanced reactivity profile—designed for reliable processing in both open-mold and compression molding operations. Its gel time is typically longer than high-reactivity resins but shorter than low-reactivity grades, offering improved working time without compromising cure efficiency under standard catalyst systems.
Q3: Which initiators and accelerators are commonly compatible with ETERSET 2307?
A: ETERSET 2307 is fully compatible with standard organic peroxide initiators such as methyl ethyl ketone peroxide (MEKP) and benzoyl peroxide (BPO), and responds well to cobalt-based accelerators. Formulators should select initiator type and dosage based on ambient conditions, part thickness, and desired cure schedule.
Q4: Is ETERSET 2307 suitable for outdoor applications requiring UV resistance?
A: While ETERSET 2307 offers baseline weatherability, it is not inherently UV-stabilized. For long-term outdoor exposure, formulation with UV absorbers and HALS stabilizers—or topcoating with protective gel coats—is recommended to prevent surface chalking and gloss loss.
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