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

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

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Brand Name :	wenyou
Model Number :	8213
Certification :	ISO9001, ISO14001, SGS, and UL
Price :	Negotiable
Payment Terms :	T/T,L/C
Supply Ability :	Plenty of raw material in stock
Delivery Time :	7 -10 work days

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Product Details
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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

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.

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