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

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

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Brand Name : wenyou

Model Number : 9229A

Certification : ISO9001, ISO14001, SGS, and UL

Place of Origin : China

MOQ : 20kg/pail as sample

Price : Negotiable

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

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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


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


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

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


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



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

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