G10 Epoxy Glass Laminate Sheet | Manufacturer & Procurement Guide

G10 epoxy glass laminate sheets, including material properties, specifications, applications, and buying guide. Xujue Electrical manufactures high-quality G10 insulation boards ...

G10 Epoxy Glass Laminate Sheet: Properties, Specifications, Applications & Buying Guide

What is G10 Epoxy Glass Laminate?

G10 Epoxy Glass Laminate Sheet is a high-performance composite laminate manufactured by impregnating electrical-grade woven fiberglass cloth with epoxy resin, followed by hot pressing under high temperature and high pressure. It offers an excellent combination of mechanical strength, electrical insulation, dimensional stability, and moisture resistance, making it one of the most widely used electrical insulation materials in industrial applications.

G10 complies with internationally recognized standards such as:

NEMA LI-1 Grade G10
MIL-I-24768/2 GEE
IEC 60893 EPGC201

One important distinction is that standard G10 is non-flame-retardant (UL94 HB). It is often confused with FR-4, which has similar mechanical and electrical properties but contains flame-retardant additives and meets the UL94 V-0 flammability rating.

Key Properties & Technical Specifications

Available Sizes & Thickness

G10 epoxy fiberglass sheets are available in a wide range of standard and custom dimensions.

Standard Sheet Sizes

1020 × 1220 mm
1220 × 2040 mm
1220 × 2440 mm
48″ × 96″ inch

Thickness Range

0.1 mm – 100 mm (Custom thicknesses available)

Available Colors:Green (Natural)/Yellow/Black/White

Typical Applications of G10 Epoxy Glass Laminate

Thanks to its outstanding balance of electrical insulation and mechanical performance, G10 is widely used across multiple industries.

How to Choose the Right G10 Sheet

Before purchasing G10 insulation sheets, consider the following factors:

1. Determine the Flame Retardancy Requirement

G10 — UL94 HB (Non-flame-retardant)

FR-4 — UL94 V-0 (Flame-retardant)

Choosing the correct grade is essential for meeting electrical safety requirements.

2. Confirm Material Specifications

Specify:Thickness/Length/Width/Color/Machining requirements/Quantity

3. Verify Compliance

Request relevant certifications, including:UL/RoHS/REACH/Material Test Reports (if required)

4. Request Samples

For new projects or volume orders, sample testing is recommended to verify mechanical and electrical performance before mass production.

Why Choose Xujue Electrical?

Established in 1958, Xujue Electrical is a professional manufacturer of electrical insulation materials serving industries including transformers, electric motors, high- and low-voltage power equipment, PCB base materials, railway, and telecommunications.

We provide:

G10 Epoxy Glass Laminate Sheets
FR-4 Epoxy Glass Sheets
CNC Machined Insulation Components
Transformer Insulation Materials
Motor Insulation Materials
Custom Electrical Insulation Solutions

With decades of manufacturing experience, strict quality control, and compliance with international standards, we deliver reliable products, fast lead times, and comprehensive technical support for customers worldwide.