EP GC 203 material introduction and characteristics

EP GC 203 material introduction EP GC 203 (or G11) is an epoxy glass cloth laminate, which is widely used in the fie...

EP GC 203 material introduction

EP GC 203 (or G11) is an epoxy glass cloth laminate, which is widely used in the field of electrical insulation. It is an ideal choice for insulating parts in high temperature, high humidity and corrosive environments. Its main characteristics and information are as follows:

‌Core characteristics‌

1.‌High temperature mechanical strength‌

High mechanical strength at room temperature‌, and can still maintain high mechanical strength at high temperature (155℃) ‌‌.

Stable dielectric properties in high humidity environment ‌‌.

2.‌Excellent insulation and environmental resistance‌

It has long-lasting insulation strength and radiation resistance at high temperature ‌‌.

Resistant to chemical corrosion, suitable for chemical environment ‌‌.

Flame retardancy reaches FV0 level (UL94 standard), oxygen index ≥50 ‌‌.

3.‌Electrical performance‌

Normal insulation resistance ≥1.0×10¹²Ω, ≥5.0×10¹⁰Ω after 24 hours of immersion in water ‌‌.
Excellent voltage resistance (voltage resistance in parallel layers ≥ 35kV).

‌Specifications‌

‌‌Item‌ ‌	‌Parameter range‌
Thickness‌	0.08～120mm ‌‌
‌Standard size‌	1020×1220mm、1020×2040mm、1220×2440mm ‌‌
‌Color‌	Natural color, green
‌Density‌	1.85～2.0 g/cm³‌

‌Main application areas‌

‌Electrical equipment‌: Insulation structural parts of F-class motors, circuit breakers, transformers, and switch cabinets ‌‌.
‌Mechanical and chemical‌: High temperature resistant mechanical parts, chemical corrosion environment parts ‌‌.
‌Electronics and transportation‌: Medium and high frequency electronic components, electric vehicles and rail transportation insulation parts ‌‌.

‌Processing and precautions‌

‌Processing methods‌: Support machining such as turning, milling, planing, grinding, drilling, and punching ‌‌.
Storage requirements: Avoid moisture and bake at low temperature before processing.