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Shanghai Wenyou Industry Co., Ltd.

  • China,Shanghai ,Shanghai
  • Verified Supplier

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China High Dielectric Strength Epoxy for CT/PT Insulation & Room Temp Encapsulation
China High Dielectric Strength Epoxy for CT/PT Insulation & Room Temp Encapsulation

  1. China High Dielectric Strength Epoxy for CT/PT Insulation & Room Temp Encapsulation
  2. China High Dielectric Strength Epoxy for CT/PT Insulation & Room Temp Encapsulation

High Dielectric Strength Epoxy for CT/PT Insulation & Room Temp Encapsulation

  1. MOQ: 20kg/pail as sample
  2. Price: Negotiable
  3. Get Latest Price
Payment Terms Normally 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 10-35KV sealed terminal posts, transformers, current transformers, and other insulation components
Application Electrical insulators for medium and high voltage applications
Appearance of epoxy resin Milky white viscous liquid
Viscosity at 40°C 10000 - 20000mPa.s
Density at 25°C 1.55 - 1.70g/cm3
Vapor Pressure at 25°C < 0.01Pa
Flash point around 135°C
Discription Long durability Transformer Epoxy Resin good Crack Resistance outdoor use
Brand Name wenyou
Model Number 9229A
Certification ISO9001, ISO14001, SGS, and UL
Place of Origin China

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  1. Product Details
  2. Company Details

Product Specification

Payment Terms Normally 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 10-35KV sealed terminal posts, transformers, current transformers, and other insulation components
Application Electrical insulators for medium and high voltage applications Appearance of epoxy resin Milky white viscous liquid
Viscosity at 40°C 10000 - 20000mPa.s Density at 25°C 1.55 - 1.70g/cm3
Vapor Pressure at 25°C < 0.01Pa Flash point around 135°C
Discription Long durability Transformer Epoxy Resin good Crack Resistance outdoor use Brand Name wenyou
Model Number 9229A Certification ISO9001, ISO14001, SGS, and UL
Place of Origin China
High Light High Dielectric Strength EpoxyRoom Temp Encapsulation EpoxyCT/PT Insulation Epoxy

LW-9229A/B: Crack-Resistant Room Temp Cure Epoxy for 10-35kV CT/PT Insulation & Outdoor Encapsulation

UL-Certified | Pre-Mixed Fillers | Superior Dielectric Strength

Engineered for outdoor electrical insulation in Current Transformers (CT) and Potential Transformers (PT), this modified BPA epoxy system delivers crack-resistant encapsulation for 10-35kV terminal posts, bushings, and transformer components. With pre-mixed fillers in both resin (LW-9229A) and hardener (LW-9229B), it ensures consistent thermal shock resistance and long-term durability in harsh environments.

Key Advantages

  • Crack Resistance: Withstands thermal cycling for outdoor applications.

  • High Dielectric Strength: Critical for 10-35kV insulation systems.

  • Pre-Mixed Fillers: Simplified processing, no weighing errors.

  • Room Temperature Cure: Energy-efficient transformer manufacturing.

  • Moisture & Chemical Resistance: Protects CT/PT units from environmental degradation.


Applications

Ideal for:

  • 10-35kV sealed terminal posts

  • CT/PT transformer potting & coil encapsulation

  • Outdoor bushings, insulators, switchgear

  • High-voltage electrical insulation components


Processing Methods

Method Benefit
Vacuum Gravity Casting Bubble-free encapsulation for complex geometries.
Automatic Pressure Gelation (APG) High-yield production of crack-resistant parts.

Critical Properties

Property Value/Description
Filler Status Pre-mixed in resin & hardener
Dielectric Strength >22 kV/mm (ASTM D149)
Thermal Shock Resistance Excellent (1,000+ cycles, IEC 60216)
Crack Resistance Optimized for outdoor exposure
Viscosity Slurry liquid for deep gap filling
Certification UL 94 V-0 (Flame Retardant)

Formulation Guide

Component Product Proportion
Epoxy Resin LW-9229A 100 pbw
Hardener LW-9229B 100 pbw
Colorant LC-Series* 1 pbw
*Color paste optional for UV-stable pigmentation.

Why Choose LW-9229A/B?

This electrical-grade epoxy combines BPA’s structural strength with pre-mixed fillers for unmatched crack resistance in outdoor applications. Its slurry viscosity ensures perfect gap filling for CT/PT windings, while room temperature curing reduces production costs. Ideal for 10-35kV terminal posts and transformer encapsulation, it delivers lifelong moisture resistance and dielectric performance under thermal cycling.


Advantage



Package Image


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Company Details

Bronze Gleitlager

,

Bronze Sleeve Bushings

 and 

Graphite Plugged Bushings

 from Quality China Factory
  • Business Type:

    Manufacturer,Exporter,Seller

  • Year Established:

    2008

  • Total Annual:

    15000000-25000000

  • Employee Number:

    50~100

  • Ecer Certification:

    Verified Supplier

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, toughe... 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, toughe...

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Get in touch with us

  • Reach Us
  • Shanghai Wenyou Industry Co., Ltd.
  • No.8,Lane 328, Minle Rd. Fengxian 201419,Shanghai P.R.China
  • https://www.wenyouepoxy.com/

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