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High reactivity with standard MEKP and cobalt accelerators for rapid gelation and efficient production cycles.
Excellent mechanical strength and dimensional stability after curing, supporting structural integrity in demanding applications.
Low styrene emission formulation compliant with modern VOC reduction requirements in industrial manufacturing.
Good compatibility with common fillers, pigments, and glass fiber reinforcements without phase separation.
Consistent batch-to-batch performance ensured through rigorous in-process quality control and ISO-certified production.
Fiberglass-reinforced plastic (FRP) tanks and vessels for chemical storage and water treatment systems.
Industrial corrosion-resistant linings and coatings for concrete and steel substrates.
Composite panels and cladding systems used in architectural and infrastructure projects.
Marine components including hull laminates, decks, and structural reinforcements.
Transportation parts such as truck body panels, bus interior components, and rail car enclosures.
| Chemical Type | Unsaturated orthophthalic polyester resin |
| Product Form | Liquid, ready-to-use |
| Appearance | Clear to pale yellow, homogeneous liquid |
| Viscosity (25°C) | 350–450 mPa·s (Brookfield DV-E, spindle #3, 20 rpm) |
| Acid Value | 18–22 mg KOH/g |
| Gel Time (with 1.0% MEKP, 25°C) | Approx. 12–16 minutes |
| Density (25°C) | 1.11–1.13 g/cm³ |
| Styrene Content | 38–42 wt% |
Q1: What is the primary application field for EL-6510?
A: EL-6510 is a high-performance unsaturated polyester resin designed primarily for demanding composite applications, including marine hulls, wind turbine blades, and industrial corrosion-resistant linings where excellent mechanical strength, dimensional stability, and resistance to moisture and thermal cycling are required.
Q2: Is EL-6510 compatible with common peroxide initiators?
A: Yes, EL-6510 is formulated to be readily curable with standard organic peroxides such as methyl ethyl ketone peroxide (MEKP) and benzoyl peroxide (BPO), enabling flexible processing across room-temperature and elevated-temperature cure schedules.
Q3: How does EL-6510 perform in humid or wet environments during processing?
A: EL-6510 exhibits low moisture sensitivity compared to many conventional polyester resins, supporting more robust handling in moderate humidity conditions and contributing to improved gel consistency and reduced surface tack in humid ambient settings.
Q4: Can EL-6510 be used with glass fiber reinforcements without special treatment?
A: Yes — EL-6510 demonstrates strong interfacial adhesion with standard E-glass reinforcements, including woven rovings, chopped strands, and mats, without requiring additional coupling agents in most standard formulations.
Q5: What viscosity range can be expected for EL-6510 at 25°C?
A: EL-6510 is supplied as a medium-viscosity liquid resin, typically ranging between 300–800 cP at 25°C, offering balanced processability for spray-up, hand lay-up, and resin infusion methods without requiring excessive dilution.
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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
