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High reactivity with standard peroxide initiators for rapid gelation and efficient production cycles.
Excellent mechanical strength and impact resistance in cured laminates.
Good compatibility with common glass fiber reinforcements and filler systems.
Low viscosity (25°C) enabling superior wet-out of fibers and ease of processing by hand lay-up or spray methods.
Consistent batch-to-batch performance ensured through stringent QC and ISO-certified manufacturing.
Fiberglass-reinforced plastic (FRP) tanks and chemical storage vessels.
Marine hulls, decks, and structural components requiring corrosion resistance.
Industrial grating, ductwork, and corrosion-resistant linings.
Transportation panels including truck bodies and trailer skins.
Architectural cladding and decorative molded products.
| Chemical Type | Unsaturated orthophthalic polyester resin |
| Product Form | Liquid, ready-to-use |
| Appearance | Clear to pale yellow, homogeneous liquid |
| Viscosity (25°C) | 350–450 cP |
| Solid Content | 99.5–100 wt% |
| Acid Value | 18–22 mg KOH/g |
| Density (25°C) | 1.12–1.15 g/cm³ |
| Styrene Content | 38–42 wt% |
Q1: What is the primary application field for EL-5310?
A: EL-5310 is a high-performance unsaturated polyester resin designed primarily for demanding composite applications, including marine hulls, wind turbine blades, and structural FRP components where excellent mechanical strength, dimensional stability, and resistance to moisture and thermal cycling are required.
Q2: Is EL-5310 compatible with standard glass fiber reinforcements?
A: Yes, EL-5310 demonstrates excellent compatibility with E-glass, CSM, woven roving, and multiaxial fabrics. It provides strong interfacial adhesion and efficient wet-out under conventional laminating and infusion processes.
Q3: How does EL-5310 perform in terms of gel time and cure profile?
A: EL-5310 offers a balanced reactivity profile — it delivers controllable gel times at ambient and elevated temperatures when used with standard peroxide initiators (e.g., MEKP), supporting both room-temperature hand lay-up and accelerated oven-cure cycles without excessive exotherm or premature viscosity rise.
Q4: Can EL-5310 be modified with fillers or additives?
A: Yes, EL-5310 is readily formulated with common mineral fillers (e.g., calcium carbonate, talc), thixotropic agents, pigments, and flame retardants. Its molecular structure supports good dispersion and minimal impact on final crosslink density when additives are introduced within typical industrial dosage ranges.
Q5: Does EL-5310 require special handling or storage conditions?
A: EL-5310 should be stored in tightly sealed containers at temperatures between 15–25°C, away from direct sunlight and sources of heat or ignition. Prolonged exposure to elevated temperatures or UV light may accelerate pre-polymerization; refrigeration is not required but freezing must be avoided.
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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
