Shanghai Wenyou Industry Co., Ltd.
| Payment Terms | L/C,T/T,Western Union,MoneyGram |
| Supply Ability | Plenty of raw material in stock |
| Delivery Time | 7 -10 work days |
| Packaging Details | 20kg/pail, 220kg/barrel, 1200kg/tank |
| Process | APG & Vacuum Casting |
| Impact Strength | 10-18kJ/ M2 |
| Temperature Resistance | High |
| Apply | high voltage transformer |
| Application | Electrical Insulation |
| Brand Name | WENYOU |
| Model Number | LE-184/LH-8504 |
| Certification | ISO/REACH/RoHS/SGS/UL |
| Place of Origin | CHINA |
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Product Specification
| Payment Terms | L/C,T/T,Western Union,MoneyGram | Supply Ability | Plenty of raw material in stock |
| Delivery Time | 7 -10 work days | Packaging Details | 20kg/pail, 220kg/barrel, 1200kg/tank |
| Process | APG & Vacuum Casting | Impact Strength | 10-18kJ/ M2 |
| Temperature Resistance | High | Apply | high voltage transformer |
| Application | Electrical Insulation | Brand Name | WENYOU |
| Model Number | LE-184/LH-8504 | Certification | ISO/REACH/RoHS/SGS/UL |
| Place of Origin | CHINA | ||
| High Light | UV-Resistant Outdoor Epoxy Resin ，High-Voltage Insulation Outdoor Epoxy Resin ，Vacuum Casting Outdoor Epoxy Resin | ||
The LE-184/LH-8504 epoxy system is a weather-resistant, multi-component formulation engineered for outdoor high-voltage electrical insulation. Featuring modified BPA epoxy (LE-184), anhydride hardener (LH-8504), flexibilizer (LF-660), and accelerator (LZ-622), it delivers exceptional UV/erosion resistance, thermal shock stability, and superior dielectric performance. Ideal for APG or vacuum casting processes in harsh environments.
| Feature | Advantage |
|---|---|
| UV & Weather Resistance | Withstands outdoor exposure, prevents erosion & yellowing |
| Flexibilizer LF-660 (0-20 pbw) | Enhances crack resistance under thermal cycling |
| Accelerator LZ-622 (0-0.4 pbw) | Speeds curing for high-volume production |
| APG & Vacuum Casting Compatible | Adapts to existing manufacturing setups |
| High Dielectric Strength | 25-35 kV/mm (IEC 60243-1) for outdoor insulators |
| Low Water Absorption | 0.10-0.20% (23°C/10d) ensures long-term integrity |
| Solvent-Free | Eco-friendly, low-VOC processing |
Built for outdoor electrical components:
HV bushings, insulators & surge arresters
Transformer encapsulation
Outdoor switchgear (12-40.5 kV)
Solar/Wind energy infrastructure
Railway electrification components
*Cured system: LE-184/LH-8504/Silica=100:90:350 | Cure: 140°C×2h + 130°C×10h*
| Property | Value | Standard |
|---|---|---|
| Tensile Strength | 60-85 MPa | ISO 527 |
| Flexural Strength | 100-140 MPa | ISO 178 |
| Impact Strength | 8-16 kJ/m² | ISO 179 |
| Glass Transition (Tg) | 65-105°C | ISO 11357-2 |
| Thermal Conductivity | 0.7-0.9 W/m·K | ISO 8894-1 |
| Decomposition Temp | >320°C | ASTM E2402 |
| Breakdown Strength (3mm) | 25-30 kV/mm | IEC 60243-1 |
| HV Arc Resistance | 185-195 sec | IEC 61621 |
| Tracking Resistance | CTI>600 (Solution A/B) | IEC 60112 |
| Electrolytic Corrosion | Grade A-1 | IEC 60426 |
| Flammability | HB Rating | UL94 |
Q1: What’s the role of LF-660 and LZ-622?
A: LF-660 (0-20 pbw) improves flexibility & crack resistance. LZ-622 (0-0.4 pbw) accelerates curing – critical for APG production.
Q2: How should I store components?
A: Store in sealed containers at 18-25°C. Shelf life: 24 months. Avoid moisture – hardener is humidity-sensitive.
Q3: What processing methods are supported?
A: Optimized for:
APG: Mold temp 130-150°C | Gel time 10-50 min
Vacuum Casting: Cure 80-100°C | Gel time 3-6h
Post-cure: 130-140°C×6-10h for all methods
Q4: How is filler pre-treated for HV applications?
A: Silica filler must be pre-dried (moisture ≤0.2%). Use thin-film degassing mixers for consistent dispersion.
Q5: Is this system suitable for coastal environments?
A: Yes! UV resistance + low water absorption (0.10-0.20%) prevents salt corrosion & tracking.
Company Details
Business Type:
Manufacturer,Exporter,Seller
Year Established:
2008
Total Annual:
15000000-25000000
Employee Number:
50~100
Ecer Certification：
Verified Supplier
Shanghai Wenyou Industry Co., Ltd.mainly engaged in the advanced materialsof MV and HV insulation products for indoorand outdoor use, both suitable for APG andvacuum casting. Our wide range of products includes epoxy resin, flame retardant resin, curing agents, outdoor modifiers, toughe... Shanghai Wenyou Industry Co., Ltd.mainly engaged in the advanced materialsof MV and HV insulation products for indoorand outdoor use, both suitable for APG andvacuum casting. Our wide range of products includes epoxy resin, flame retardant resin, curing agents, outdoor modifiers, toughe...
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