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Thermal Shock Resistant Epoxy Curing Agent for MV Switchgear Encapsulation & Protection
Thermal Shock Resistant Epoxy Curing Agent for MV Switchgear Encapsulation & Protection
Specifications
Brand Name :
wenyou
Model Number :
8213
Certification :
ISO9001, ISO14001, SGS, and UL
Place of Origin :
China
MOQ :
20kg/pail as sample
Price :
Negotiable
Payment Terms :
T/T,L/C
Supply Ability :
Plenty of raw material in stock
Delivery Time :
7 -10 work days
Packaging Details :
20kg/pail, 220kg/barrel, 1200kg/tank
Classification :
Double Components Adhesives
Usage :
Dry-type transformers, 10-66kV current transformers, voltage transformers, and other related products
Application :
Electrical insulators for medium and high voltage applications
Appearance of epoxy resin :
Transparent viscous liquid
Appearance of hardener :
Light yellow liquid
Viscosity at 25°C :
3000 - 6000mPa.s
Density at 25°C :
1.16 - 1.20g/cm3
Vapor Pressure at 25°C :
＜ 0.01Pa
Flash point :
around 135°C
Description :
Excellent transformer maker epoxy resin producer environment friendly chemicals
Description

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

  1. Vacuum Gravity Casting

    • Optimal for complex geometries

    • Eliminates air pockets in windings

  2. 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.

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Thermal Shock Resistant Epoxy Curing Agent for MV Switchgear Encapsulation & Protection

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Product Detail
Brand Name :
wenyou
Model Number :
8213
Certification :
ISO9001, ISO14001, SGS, and UL
Place of Origin :
China
MOQ :
20kg/pail as sample
Price :
Negotiable
Contact Supplier
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Thermal Shock Resistant Epoxy Curing Agent for MV Switchgear Encapsulation & Protection

Shanghai Wenyou Industry Co., Ltd.

Verified Supplier
4 Years
shanghai, shanghai
Since 2008
Business Type :
Manufacturer, Exporter, Seller
Main Products :
Electrical Epoxy Resin, Outdoor Epoxy Resin, Flame Retardant Epoxy Resin
Total Annual :
15000000-25000000
Employee Number :
50~100
Certification Level :
Verified Supplier
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