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 |
| Thermal Class | F |
| Adhesion | Strong |
| Brand Name | WENYOU |
| Model Number | The LE-8216F/LH-8216F |
| 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 |
| Thermal Class | F | Adhesion | Strong |
| Brand Name | WENYOU | Model Number | The LE-8216F/LH-8216F |
| Certification | ISO/REACH/RoHS/SGS/UL | Place of Origin | CHINA |
| High Light | 66kV Outdoor Epoxy Resin ，UV-Resistant Outdoor Epoxy Resin ，Low-Shrinkage Transformer Epoxy Resin | ||
The LE-8216F/LH-8216F is an epoxy resin system engineered for medium/high-voltage electrical insulation (10-66kV). Featuring a modified weather-resistant anhydride hardener (LH-8216F) and low-shrinkage formulation, it delivers exceptional dimensional stability, superior arc resistance, and HB flammability rating. Ideal for vacuum-cast dry-type transformers, CTs/VTs, and critical insulation components.
| Feature | Advantage |
|---|---|
| Cyclic Aliphatic Epoxy Resin | Superior weather resistance + UV stability |
| Low Curing Shrinkage (0.9-1.1%) | Precision dimensions for complex HV parts |
| Thermal Class B (IEC 60085) | Reliable performance up to 130°C |
| Vacuum Casting Optimized | Seamless integration with existing production |
| High Dielectric Strength | >25 kV/mm (1mm, IEC 60243-1) |
| Low Water Absorption | 0.08-0.15% (100°C/60min) for humid environments |
| Solvent-Free + Low VOC | Eco-friendly processing |
Built for high-voltage electrical insulation:
Dry-type transformers
Current/voltage transformers (10-66kV)
Bushings, insulators, switchgear
Encapsulation of sensors & relays
Grid infrastructure components
*Cured system: LE-8216F/LH-8216F/Silica powder = 100:100:350*
| Property | Value | Standard |
|---|---|---|
| Glass Transition (Tg) | 60-75°C | ISO 11357-2 |
| Flexural Strength | 100-140 MPa | ISO 178 |
| Impact Strength | 9-16 kJ/m² | ISO 179 |
| Tensile Strength | 65-85 MPa | ISO 527 |
| Compressive Strength | 140-180 MPa | GB/T2567 |
| Thermal Conductivity | 0.8-0.9 W/m·K | ISO 8894-1 |
| Decomposition Temp | >320°C | ASTM E2402 |
| Volume Resistivity | 10¹⁵ Ω·cm | IEC 62631-3-1 |
| Arc Resistance | 181-198 sec | IEC 61621 |
| Tracking Resistance | ≥600 V | IEC 60112 |
| Dielectric Constant | 3.0-4.0 (50Hz) | IEC 60250 |
| Flammability | HB (UL94) | UL94/GB/T2408 |
| Hydrophobicity | HC1 Class | IEC 62073 |
Q1: What makes LE-8216F suitable for outdoor HV applications?
A: Its cyclic aliphatic structure provides inherent UV/weather resistance, while low water absorption (0.08-0.15%) ensures stability in humid conditions.
Q2: What is the curing process?
A: Optimized for vacuum casting:
Pre-mix: 60-70°C/1-2h (100-300Pa)
Cure: 70-80°C/3-5h → 90-100°C/2-4h → Post-cure 130°C/12h
Q3: How does filler ratio affect properties?
A: Silica powder (300-360 pbw) enhances mechanical strength but must be uniformly dispersed. Adjust within range to balance viscosity vs. performance.
Q4: Is this system compatible with APG?
A: Designed for vacuum casting. For APG, consult Shanghai Wenyou for formulation adjustments.
Q5: What safety measures are critical?
A: Essential PPE: gloves, goggles, respirator. Maintain ventilation (3-5 air renewals/hour). Avoid skin contact—use barrier cream.
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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