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Epoxy Resin For Indoor High-voltage Switchgear Bushings Transformers

Epoxy Resin For Indoor High-voltage Switchgear Bushings Transformers

Epoxy Resin For Indoor High-voltage Switchgear Bushings Transformers
Epoxy Resin For Indoor High-voltage Switchgear Bushings Transformers
Categories Electrical Epoxy Resin
Brand Name: WENYOU
Model Number: LE-9219K/LH-9219K
Certification: REACH/RoHS/UL/ISO/CE
Place of Origin: CHINA
MOQ: 20KG
Payment Terms: L/C,T/T,Western Union,MoneyGram
Application: Electrical Insulation
Feature: Water Resistance,high quality
Heat Resistance: High
Impact Strength: High
Flammability: HB Class
Chemical Resistance: Excellent
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Shanghai Wenyou Industry Co., Ltd.
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Epoxy Resin For Indoor High-voltage Switchgear Bushings Transformers

Epoxy Resin for Indoor High-Voltage Switchgear Bushings Transformers
Product Attributes
AttributeValue
ApplicationElectrical Insulation
FeatureWater Resistance, High Quality
Heat ResistanceHigh
Impact StrengthHigh
FlammabilityHB Class
Chemical ResistanceExcellent
Product Description

The LE-9219K/LH-9219K is a high-performance two-component epoxy resin system designed for medium/high-voltage electrical insulation (12-40.5 kV). Formulated with modified BPA epoxy resin (LE-9219K) and carboxylic anhydride hardener (LH-9219K), it delivers exceptional thermal shock resistance, superior crack resistance, and H-class thermal stability (IEC 60085). Ideal for vacuum casting or APG processes, it ensures reliability in critical indoor electrical components.

Key Features & Advantages
FeatureAdvantage
Modified BPA Epoxy + Anhydride HardenerEnhanced thermal stability & mechanical strength
Optimized for Vacuum Casting/APGFlexible processing, adaptable to client production methods
Superior Crack ResistanceWithstands thermal cycling, reducing failure risks
HB Flammability Rating (UL94)Meets strict safety standards for electrical applications
High Dielectric Strength≥25 kV/mm (1mm thickness, IEC 60243-1)
Low Water Absorption0.10-0.20% (23°C/10 days) for long-term insulation integrity
H-Class Thermal EnduranceSustained performance up to 150°C
Applications

Perfect for insulating components in indoor high-voltage systems:

  • Switchgear contact boxes (12-40.5 kV)
  • Bushings, insulators, & encapsulation
  • Transformers, sensors, & circuit breakers
  • HV insulation products requiring precision casting
Key Performance Data

Cured system: LE-9219K/LH-9219K/Silica powder = 100:100:350 @ 140°C/10h

PropertyValueStandard
Glass Transition Temp (Tg)105-120°CISO 11357-2
Tensile Strength65-85 MPaISO 527
Flexural Strength105-140 MPaISO 178
Volume Resistivity10¹⁵ Ω*cmIEC 62631-3-1
Arc Resistance181-198 secIEC 61621
Breakdown Strength≥25 kV/mmIEC 60243-1
Dielectric Constant3.0-4.0 (50Hz)IEC 60250
Water Absorption0.10-0.20% (23°C/10d)ISO 62
Tracking Resistance≥600 VIEC 60112
Curing Shrinkage0.8-1.0%HG/T2625
Frequently Asked Questions (FAQ)
Q1: What is the mix ratio for LE-9219K/LH-9219K?
A: Standard ratio is 100:100 pbw (resin:hardener). Filler (silica powder) added at 300-380 pbw.
Q2: How should the hardener be stored?
A: Store in sealed containers at 6-35°C. Avoid moisture exposure. If crystallized, preheat to 70-80°C and stir before use.
Q3: What curing process is recommended?
A: Two options:
Vacuum Casting: Cure 70-80°C/3-5h + 90-100°C/2-4h; Post-cure 130°C/12h.
APG: Mold temp 130-160°C; Post-cure 130-150°C/10-12h.
Q4: Is this system suitable for outdoor use?
A: Designed for indoor electrical insulation only. Hydrophobicity class HC1 (IEC TS 62073).
Q5: What safety measures are required during handling?
A: Mandatory: gloves, goggles, protective clothing. Use ventilation (3-5 air renewals/hour). Avoid skin contact--wash immediately if exposed.
Product Tags:

high-voltage epoxy resin for switchgear

  

electrical epoxy resin for transformers

  

indoor epoxy resin for bushings

  
Quality Epoxy Resin For Indoor High-voltage Switchgear Bushings Transformers for sale

Epoxy Resin For Indoor High-voltage Switchgear Bushings Transformers

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