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Excellent mechanical strength and dimensional stability after curing.
Good compatibility with standard styrene monomers and common accelerators.
Low viscosity for easy handling, improved fiber wet-out, and enhanced moldability.
Consistent batch-to-batch performance ensured by strict quality control in Chang Chun’s ISO-certified production facilities.
Optimized reactivity profile for balanced gel time and full cure development in ambient and elevated temperature processes.
Fiberglass-reinforced plastic (FRP) tanks and vessels for chemical storage.
Marine components including boat hulls, decks, and structural panels.
Industrial corrosion-resistant piping systems and ductwork.
Automotive body panels and under-hood composite parts.
Wind turbine blade structural reinforcements and nacelle enclosures.
| Chemical Type | Unsaturated polyester resin (orthophthalic-based) |
| Product Form | Liquid, ready-to-use |
| Appearance | Clear to pale yellow viscous liquid |
| Viscosity (25°C, mPa·s) | 350–450 |
| Solid Content (% w/w) | 62–66 |
| Acid Value (mg KOH/g) | 18–22 |
| Gel Time (at 25°C with 1% MEKP) | 12–18 minutes |
| Styrene Content (% w/w) | 38–42 |
Q1: What are the primary application areas for ETERSET 2422?
A: ETERSET 2422 is widely used in reinforced composites requiring good mechanical strength and surface finish, including marine components, automotive body parts, industrial tanks, and architectural panels. It is especially suited for hand lay-up and spray-up processes where balanced reactivity and low exotherm are beneficial.
Q2: How does ETERSET 2422 compare to standard orthophthalic resins in terms of performance?
A: ETERSET 2422 offers enhanced hydrolytic stability and improved resistance to blistering compared to conventional orthophthalic resins, due to its modified backbone structure. It also provides better compatibility with common fillers and reinforcements, supporting higher solid content formulations without significant viscosity increase.
Q3: What curing agents are recommended for use with this resin?
A: Standard methyl ethyl ketone peroxide (MEKP) initiators are typically used. The dosage depends on formulation requirements and ambient conditions, but generally ranges from 0.1% to 2% by weight. Accelerators such as cobalt naphthenate may be added to adjust gel time and cure profile.
Q4: Is ETERSET 2422 suitable for outdoor applications exposed to UV radiation?
A: While ETERSET 2422 provides good inherent weather resistance, long-term UV exposure may lead to surface chalking or gloss loss without protection. For durable outdoor use, it is recommended to apply a UV-stabilized gel coat or topcoat containing HALS and/or UV absorbers.
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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
