Name: Epoxy System H-Class Insulation 12-40.5kV Applications Vacuum / APG Casting
Brand: Shanghai Wenyou Industry Co., Ltd.
SKU: LW-8229A/LW-8229B
Price: 2.35 USD
Availability: InStock

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Epoxy System H-Class Insulation 12-40.5kV Applications Vacuum / APG Casting

H-Class Insulation Epoxy System

APG Casting Epoxy System

Place of Origin:

CHINA

Brand Name:

WENYOU

Certification:

ISO/REACH/RoHS/SGS/UL

Model Number:

LW-8229A/LW-8229B

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Product Details

Breakdown Strength:

≥25 KV/mm

Tracking Resistance:

≥600 V

Dielectric Lost:

<0.02%

Flammability:

HB (UL94)

Payment & Shipping Terms

Minimum Order Quantity

20kg/pail as sample

Price

Negotiable

Packaging Details

20kg/pail, 220kg/barrel, 1200kg/tank

Delivery Time

7 -10 work days

Payment Terms

L/C,T/T,Western Union,MoneyGram

Supply Ability

Plenty of raw material in stock

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008618018933365

Elliot.yang@sh-wysy.com

86-21-64308192

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Product Description

Epoxy System | H-Class Insulation | 12-40.5kV Applications | Vacuum/APG Casting

Product Attributes

Breakdown Strength	≥25 kV/mm
Tracking Resistance	≥600 V
Dielectric Lost	<0.02%
Flammability	HB (UL94)

Product Description

The LE-9215/LH-9215 is a high-performance epoxy system for medium/high-voltage electrical insulation (12-40.5kV). Featuring modified BPA epoxy resin (LE-9215) and anhydride hardener (LH-9215), it delivers exceptional thermal shock resistance, superior dielectric strength, and H-class thermal endurance (180°C). Optimized for vacuum casting and APG processes in contact boxes, insulators, and switchgear.

Key Features & Advantages

Modified BPA Epoxy + Anhydride Hardener	High mechanical strength + thermal stability
Adjustable Silica Filler (300-400 pbw)	Customizable viscosity/performance balance
Thermal Class H (IEC 60085)	Reliable operation up to 180°C
Dual-Process Compatibility	Seamless APG or vacuum casting integration
Low Curing Shrinkage (0.8-1.0%)	Precision dimensional stability
HB Flammability Rating (UL94)	Enhanced fire safety for electrical components
High Arc Resistance	181-198 sec (IEC 61621)

Applications

Built for critical HV insulation:

12-40.5kV contact boxes & insulators
Switchgear components
Current/voltage transformers
Encapsulation of relays & sensors
Grid infrastructure protection devices

Key Performance Data

Cured system: LE-9215/LH-9215/Silica powder = 100:100:350

Mechanical & Thermal Properties

Glass Transition (Tg)	105-120°C	ISO 11357-2
Flexural Strength	100-130 MPa	ISO 178
Compressive Strength	150-200 MPa	GB/T2567
Impact Strength	9-14 kJ/m²	ISO 179
Thermal Conductivity	0.4-0.8 W/m*K	ISO 8894-1
Water Absorption	<0.2% (100°C/60min)	ISO 62

Electrical & Safety Properties

Breakdown Strength	≥25 kV/mm	IEC 60243-1
Volume Resistivity	10¹⁵ Ω*cm	IEC 62631-3-1
Tracking Resistance	≥600 V	IEC 60112
Dielectric Loss	<0.02%	IEC 60250
Flammability	HB (UL94)	UL94/GB/T2408
Hydrophobicity	HC1 Class	IEC 62073

Frequently Asked Questions (FAQ)

Q1: What's the optimal silica filler ratio?

A: Adjust between 300-400 pbw - higher ratios enhance strength but increase viscosity.

Q2: How does this system handle thermal cycling?

A: Excellent thermal shock resistance due to low shrinkage (0.8-1.0%) and high Tg (105-120°C).

Q3: What curing process is recommended?

A: Vacuum Casting: Cure @70-80°C/3-5h -> 90-100°C/2-4h -> Post-cure 130°C/12h

APG: Post-cure @130-150°C/10-12h after molding.

Q4: Is color customization possible?

A: Yes! LC series color pastes can be added (3 pbw recommended).

Q5: Why choose HB flammability rating?

A: HB classification balances safety and cost for 12-40.5kV indoor applications.

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