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

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

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

Critical Properties

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.

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, toughening agents, epoxy paste, demoulding agents, and fillers.

We have obtained ISO9001, ISO14001, SGS, and UL certifications, and our products comply with ROHS and REACH safety regulations.

Our high-quality products are used in high voltage electrical insulation applications and are exported globally. We are committed to providing stable products and excellent service to the global electricity industry.

High Quality Electrical Raw Materials
Epoxy resin

Release agent

Silica powder
Hardener
Color paste
Flexibilizer