Thermal Shock Resistant Epoxy Curing Agent for MV Switchgear Encapsulation & Protection
Brand Name:wenyou
Certification:ISO9001, ISO14001, SGS, and UL
Model Number:8213
Minimum Order Quantity:20kg/pail as sample
Delivery Time:7 -10 work days
Payment Terms:T/T,L/C
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Shanghai Shanghai China
Address:
No.8,Lane 328, Minle Rd. Fengxian 201419,Shanghai P.R.China
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Product Details
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Product Details
Environmentally Friendly Epoxy Resin System for Transformers & MV Switchgears
LE-8213 Epoxy Resin + LH-8213 Hardener
Product Overview
LE-8213/LH-8213 is a saturated cyclic aliphatic epoxy resin system engineered for high-voltage electrical insulation. Designed for sustainability and extreme reliability, this two-component system delivers exceptional thermal shock resistance (-40°C to +150°C), low curing shrinkage, and UV/weather stability. Ideal for encapsulating MV switchgears, dry-type transformers, and critical grid components.
Key Features & Benefits
| Property | Performance |
|---|---|
| Thermal Resilience | Withstands 1,000+ cycles (-40°C ↔ +150°C) |
| Electrical Safety | Dielectric strength >18 kV/mm • Partial discharge <5 pC |
| Environmental Resistance | UV stable • Moisture impermeable • Chemical inert |
| Processing Flexibility | Low viscosity • Zero filler pre-mix • Room-temp liquid |
| Mechanical Integrity | Compressive strength >120 MPa • CTE <45 ppm/K |
Applications
Dry-Type Transformers (10-66 kV)
MV Switchgears: CTs, PTs, bushings, circuit breakers
Outdoor Electrical Components
Renewable Energy Infrastructure
Processing Methods
Vacuum Gravity Casting
Optimal for complex geometries
Eliminates air pockets in windings
Automatic Pressure Gelation (APG)
50% faster cycle times vs. conventional casting
Precision molding for high-volume production
Customizable to existing manufacturing workflows
Recommended Formulation
| Component | Material | Ratio (pbw) |
|---|---|---|
| Epoxy Resin | LE-8213 | 100 |
| Hardener | LH-8213 (Weather-resistant anhydride) | 100 |
| Filler | Silica Powder | 300-380 |
| Colorant | LC Series Paste | As required |
Critical Properties
| Category | Parameter | Value |
|---|---|---|
| Electrical | Volume Resistivity | >1×10<sup>15</sup> Ω·cm |
| Comparative Tracking Index | >600 V | |
| Thermal | Glass Transition Temp (T<sub>g</sub>) | >125°C |
| Thermal Conductivity | 0.7-1.1 W/m·K | |
| Mechanical | Flexural Strength | >95 MPa |
| Curing Shrinkage | <0.3% |
Why Choose LE-8213/LH-8213?
Eco-Compliant: Halogen-free • Low-VOC formulation
Zero Defects: Void-free encapsulation for PD resistance
Lifecycle Efficiency: 30+ year service life in substations
Cost-Reduction: Minimizes downtime & maintenance
Optimized for grid resilience – Trusted by global manufacturers for switchgear insulation, transformer coils, and renewable energy systems requiring uncompromising dielectric performance under thermal cycling stress.
Thermal Shock Resistant Epoxy Curing Agent for MV Switchgear Encapsulation & Protection
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