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Pre-Filled Epoxy System V1 Flammability HV Insulation 10-35kV APG / Vacuum Casting

Pre-Filled Epoxy System V1 Flammability HV Insulation 10-35kV APG / Vacuum Casting

APG Epoxy System

HV Insulation Epoxy System

Место происхождения:

Китай

Фирменное наименование:

WENYOU

Сертификация:

ISO/REACH/RoHS/SGS/UL

Номер модели:

LW-8229A/LW-8229B

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Детали продукта
Пробивная напряженность:
≥ 25 кВ/мм
Отслеживать сопротивление:
≥600 В
Диэлектрическая постоянная:
3.0-4.0 (50 Гц)
Возгораемость:
V1 (UL94)
Условия оплаты & доставки
Количество мин заказа
20 кг/бочко в качестве образца
Цена
Подлежит обсуждению
Упаковывая детали
20 кг/бочко, 220 кг/баррель, 1200 кг/бак
Время доставки
7 - 10 рабочих дней
Условия оплаты
Аккредитив, T/T, Western Union, MoneyGram
Поставка способности
Много сырья на складе
Сопутствующие продукты
Свяжитесь мы
86-21-64308192
Контакт теперь
Характер продукции
Pre-Filled Epoxy System | V1 Flammability | HV Insulation (10-35kV) | APG/Vacuum Casting
Product Attributes
Attribute Value
Breakdown Strength ≥25 kV/mm
Tracking Resistance ≥600 V
Dielectric Constant 3.0-4.0 (50Hz)
Flammability V1 (UL94)
Product Description

The LW-8229A/LW-8229B is a pre-mixed, filler-loaded epoxy system designed for medium/high-voltage insulation (10-35kV). Combining modified BPA epoxy (LW-8229A) and anhydride hardener (LW-8229B) with integrated fillers, it delivers superior crack resistance, V1 flammability rating (UL94), and H-class thermal endurance (180°C). Optimized for vacuum casting and APG processes in transformers, CTs, and terminal posts.

Key Features & Advantages
Feature Advantage
Pre-Mixed Fillers Simplified processing, consistent dispersion
V1 Flammability Rating Enhanced fire safety for critical electrical components
Thermal Class H (IEC 60085) Stable performance up to 180°C
APG & Vacuum Casting Ready Flexible production integration
High Arc Resistance 181-198 sec (IEC 61621)
Low Water Absorption 0.10-0.20% (23°C/10d)
Dual-Process Compatibility Adapts to APG or vacuum workflows
Applications

Ideal for sealed electrical insulation:

  • 10-35kV terminal posts & bushings
  • Dry-type transformers & current transformers
  • Switchgear insulation components
  • HV sensor encapsulation
  • Grid protection devices
Key Performance Data

Cured system: LW-8229A/LW-8229B = 100:100 | Cure: 140°C×4h + 150°C×12h

Mechanical & Thermal Properties
Property Value Standard
Flexural Strength 90-130 MPa ISO 178
Tensile Strength 55-85 MPa ISO 527
Impact Strength 8-15 kJ/m² ISO 179
Glass Transition (Tg) 105-120°C ISO 11357-2
Thermal Conductivity 0.8-0.9 W/m*K ISO 8894-1
Decomposition Temp >320°C ASTM E2402
Electrical & Safety Properties
Property Value Standard
Breakdown Strength ≥25 kV/mm IEC 60243-1
Volume Resistivity 10¹⁵ Ω*cm IEC 62631-3-1
Tracking Resistance ≥600 V IEC 60112
Dielectric Constant 3.0-4.0 (50Hz) IEC 60250
Flammability V1 (UL94) UL94/GB/T2408
Hydrophobicity HC1 Class IEC 62073
Frequently Asked Questions (FAQ)
Q1: Are fillers pre-mixed in this system?
A: Yes! Both LW-8229A (resin) and LW-8229B (hardener) contain pre-dispersed fillers, ensuring uniform properties and reduced mixing complexity.
Q2: What curing cycle is recommended?
A: For vacuum casting:
Cure: 75°C/4-5h → 95°C/2h → 115°C/4-6h → Post-cure 150°C/12h
For APG: Post-cure 130-150°C/10-12h after molding.
Q3: Why choose V1 flammability over HB?
A: V1 rating offers superior fire resistance for high-risk applications like transformers and terminal posts, meeting stricter safety standards.
Q4: Is silica filler adjustable?
A: Fillers are pre-loaded. For custom ratios, contact Shanghai Wenyou for tailored solutions.

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