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Low Viscosity Epoxy Curing Agent for Void-Free MV CT & Potential Transformer Potting
Low Viscosity Epoxy Curing Agent for Void-Free MV CT & Potential Transformer Potting
Specifications
Brand Name :
wenyou
Model Number :
8516L
Certification :
ISO9001, ISO14001, SGS, and UL
Place of Origin :
China
MOQ :
20kg/pail as sample
Price :
Negotiable
Payment Terms :
Normally L/C,T/T
Supply Ability :
Plenty of raw material in stock
Delivery Time :
7 -10 work days
Packaging Details :
20kg/pail, 220kg/barrel, 1200kg/tank
Classification :
Two-component saturated cyclic epoxy resin
Usage :
Sealing and connecting insulation
Application :
Low-voltage electrical applications, electronics, cable insulation, bonding, sealing, etc.
Appearance of epoxy resin :
Light yellow transparent viscous liquid
Appearance of hardener :
Light yellow to slightly yellow liquid
Viscosity at 25°C :
1000 - 3000mPa.s
Density at 25°C :
1.15 - 1.19g/cm3
Vapor Pressure at 25°C :
＜ 0.01Pa
Flash point :
Around 110°C
Description :
Best service epoxy resin supply chain electrical insulating epoxy resin
Description

LE-8516L/LH-8516L: Ultra-Low Viscosity Epoxy System for Void-Free MV Transformer Potting

Cycloaliphatic Resin + Anhydride Hardener for Precision CT/PT Encapsulation

Product Overview

LE-8516L epoxy resin and LH-8516L hardener deliver ultra-low viscosity (<500cPs mixed) for flawless void-free encapsulation of MV current/voltage transformers. Engineered to penetrate micron-scale gaps in densely wound coils, this system ensures partial discharge <5pC and compliance with IEEE C57.13 accuracy standards.

Critical Performance Advantages

Property Performance
Void Elimination <0.1% microvoids • Prevents electrical treeing
Electrical Integrity Volume resistivity >1E15 Ω·cm • DF <0.01 @50Hz
Thermal Management Conductivity >0.5 W/mK • Tg >110°C
Process Efficiency 5X deeper penetration vs standard epoxies

Applications

  • Instrument Transformers: CTs/PTs (15-36kV)

  • MV Switchgear Components

  • High-Voltage Insulators & Bushings

  • Precision Electronics Encapsulation

Optimized Processing

Method Key Benefit
Vacuum Gravity Casting Bubble-free impregnation of cellulose barriers
Automated Potting Systems Consistent results for high-volume production
Compatible with existing manufacturing setups

Recommended Formulation

Component Material Ratio (pbw)
Epoxy Resin LE-8516L (Cycloaliphatic) 100
Hardener LH-8516L (Anhydride) 100
Filler Silica Powder 250-350
Accelerator LZ-622 2-4
Colorant LC Series Paste As needed

Certified Performance Data

Parameter Value Standard
Mixed Viscosity 450-480 cPs ASTM D2196
Partial Discharge <3 pC @ 1.5Ur IEC 60270
Flexural Strength 105 MPa ISO 178
Thermal Shock Passes 500 cycles (-40°C↔125°C) IEC 60068-2-14

Why This System?

  • Precision Reliability: Maintains 0.2% metering accuracy in CTs/PTs

  • Short-Circuit Resilience: Withstands 50kA/3s mechanical stress

  • UV/Environment Proof: Cycloaliphatic chemistry resists yellowing

  • Faster Processing: Accelerator reduces gel time by 35%

The Gold Standard for HV Instrument Transformers – Trusted by global manufacturers for mission-critical grid components where dielectric perfection and long-term stability are non-negotiable.

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Low Viscosity Epoxy Curing Agent for Void-Free MV CT & Potential Transformer Potting

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Product Detail
Brand Name :
wenyou
Model Number :
8516L
Certification :
ISO9001, ISO14001, SGS, and UL
Place of Origin :
China
MOQ :
20kg/pail as sample
Price :
Negotiable
Contact Supplier
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Low Viscosity Epoxy Curing Agent for Void-Free MV CT & Potential Transformer Potting

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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