English
Español
tiếng việt
русский
High reactivity with standard peroxide initiators, enabling rapid gelation and efficient production cycles.
Excellent mechanical strength and dimensional stability after curing, suitable for structural composite components.
Good resistance to water, alkalis, and diluted acids under ambient conditions.
Low viscosity (at 25°C) for easy handling, fiber wet-out, and compatibility with resin infusion and spray-up processes.
Consistent batch-to-batch performance ensured by strict in-process quality control and ISO-certified manufacturing.
Fiberglass-reinforced plastic (FRP) tanks and vessels for chemical storage.
Marine hulls, decks, and interior panels requiring balanced toughness and weather resistance.
Automotive body panels and under-hood components where thermal stability and surface finish are critical.
Wind turbine blade shell sections and nacelle covers in medium-performance composite systems.
Industrial grating, ductwork, and corrosion-resistant linings in wastewater and process environments.
| Chemical Type | Unsaturated polyester resin (orthophthalic-based) |
| Product Form | Liquid, ready-to-use |
| Appearance | Clear to pale yellow, homogeneous liquid |
| Viscosity (25°C) | 250–350 cP |
| Acid Value | 18–24 mg KOH/g |
| Gel Time (with 1.0% MEKP, 25°C) | 12–18 minutes |
| Density (25°C) | 1.12–1.16 g/cm³ |
| Non-Volatile Content | ≥99.0 wt% |
Q1: What is the primary application of Chan Chem EL-2800 Polyester Resin?
A: Chan Chem EL-2800 is a solvent-free, low-viscosity unsaturated polyester resin designed primarily for high-performance gel coats and laminating systems in fiberglass-reinforced plastic (FRP) manufacturing, including marine, transportation, and industrial composite components.
Q2: Is EL-2800 compatible with common peroxide initiators?
A: Yes, EL-2800 is formulated to be compatible with standard methyl ethyl ketone peroxide (MEKP) and benzoyl peroxide (BPO) initiators. Cure performance depends on initiator type, concentration, and ambient conditions—optimization is recommended during process validation.
Q3: How does EL-2800 perform in terms of surface cure and tack-free time?
A: EL-2800 delivers excellent surface cure characteristics with minimal post-cure tack, especially when used with appropriate wax additives or air-inhibited formulations. Tack-free time is typically achieved within 30–90 minutes under standard ambient conditions, depending on formulation and humidity.
Q4: Can EL-2800 be used in outdoor applications requiring UV resistance?
A: While EL-2800 provides good mechanical and chemical resistance, it is not inherently UV-stable. For long-term outdoor exposure, it should be paired with UV-absorbing additives or protected by a dedicated UV-resistant topcoat or gel coat.
Contact With Us:
E-mail: wangxingqiang@ericwchem.com
Have a Questions? Call Us:
Add:
Building A1, Jiete Industrial Park, Huangpu District, Guangzhou City, Guangdong Province, China
