Shanghai Wenyou Industry Co., Ltd.
| Payment Terms | L/C,T/T,Western Union,MoneyGram |
| Supply Ability | 200Ton/month |
| Delivery Time | 7 days |
| Packaging Details | pail |
| Color | Light Yellow, Transparent |
| Impact Strength | High |
| Flexibility | High |
| Tensile Strength | 50-60 MPa |
| Dielectric Strength | ≥ 25 kV/mm |
| Thermal Decomposition | ＞320°C |
| Insulation Resistance | High |
| Moisture Resistance | High |
| Brand Name | WENYOU |
| Model Number | LE-9229/LH-9229 |
| Certification | ISO/UL/REACH/RoHS/CE |
| Place of Origin | China |
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Product Specification
| Payment Terms | L/C,T/T,Western Union,MoneyGram | Supply Ability | 200Ton/month |
| Delivery Time | 7 days | Packaging Details | pail |
| Color | Light Yellow, Transparent | Impact Strength | High |
| Flexibility | High | Tensile Strength | 50-60 MPa |
| Dielectric Strength | ≥ 25 kV/mm | Thermal Decomposition | ＞320°C |
| Insulation Resistance | High | Moisture Resistance | High |
| Brand Name | WENYOU | Model Number | LE-9229/LH-9229 |
| Certification | ISO/UL/REACH/RoHS/CE | Place of Origin | China |
| High Light | High-Temperature Epoxy Resin System ，Electrical Insulation Epoxy Resin System ，APG Epoxy Resin System | ||
The LE-9229/LH-9229 epoxy resin system is a dual-component, modified rubber-toughened formulation designed for demanding electrical insulation applications. Combining LE-9229 epoxy resin and LH-9229 hardener at a precise 1:1 ratio (100 pbw each) with silica flour filler (280-340 pbw), this system delivers exceptional thermal stability (Tg 105-125°C), crack resistance, and mechanical strength. Ideal for medium/high-voltage insulation (10-35kV), it supports both automatic pressure gelation (APG) and vacuum casting processes, making it suitable for transformers, solid-pole bushings, and switchgear components.
Ultra-High Thermal Resistance:
Glass transition temperature (Tg): 105-125°C
Thermal decomposition: >320°C
Low water absorption: 0.08-0.20% (23°C to 100°C)
Superior Electrical Insulation:
Volume resistivity: 10¹⁵ Ω·cm
Dielectric strength: 30 kV/mm
Loss factor: 0.02
Robust Mechanical Properties:
Tensile strength: 65-95 MPa
Flexural strength: 110-150 MPa
Impact resistance: 10-18 kJ/m²
Process Flexibility:
Optimized for APG injection (10-30 min gelation) and vacuum casting (3-6 hr cure).
Low curing shrinkage (0.7-0.9%) ensures dimensional stability.
| Epoxy Resin LE-9229 | Hardener LH-9229 |
|---|---|
| Appearance: Milky white, viscous liquid | Appearance: Pale yellow liquid |
| Viscosity at 25°C: 10.5-16.5 Pa.s | Viscosity at 25°C: 400-800 mPa.s |
| Density: 1.16-1.20 g/cm³ | Density: 1.17-1.24 g/cm³ |
| Flash Point: ~135°C | Flash Point: ~140°C |
| Mechanical | Value | Electrical/Thermal | Value |
|---|---|---|---|
| Tensile Strength | 65-95 MPa | Volume Resistivity | 10¹⁵ Ω·cm |
| Flexural Strength | 110-150 MPa | Dielectric Strength | 30 kV/mm |
| Compressive Strength | 130-190 MPa | Thermal Conductivity | 0.8-0.9 W/m·K |
| Impact Strength | 10-18 kJ/m² | Loss Factor | 0.02 |
| APG Injection | Vacuum Casting |
|---|---|
| Mix Temp: 40°C (1-2 hrs) | Mix Temp: 60°C (1-2 hrs) |
| Mold Temp: 130-150°C | Mold Temp: 80-100°C |
| Gel Time: 10-30 mins | Cure Time: 3-6 hrs |
| Post-Cure: 130-140°C × 6-10 hrs | Post-Cure: 130-140°C × 6-10 hrs |
A: Use 400-mesh silica flour at 280-340 pbw to enhance mechanical strength and thermal conductivity.
A: Yes, its dielectric strength (30 kV/mm) and volume resistivity (10¹⁵ Ω·cm) make it ideal for 10-35kV insulation.
A: APG uses pressure (0.5-5 bar) for rapid production (10-30 min gelation). Vacuum casting eliminates bubbles for precision parts but requires longer curing (3-6 hrs).
A: Yes, rated HB (4mm) and V1 (12mm) under flammability tests.
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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