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epoxy glass laminate sheet

Epoxy Glass Laminate Sheet

Epoxy glass laminate sheet is an insulation laminate sheet formed by bonding glass cloth with epoxy resin.

Model: EPGC308 Epoxy Glass Laminate Sheet
Material: Epoxy resin + Glass fiber
Dimensions: 1020mm*1220mm/1220mm*2040mm/1220mm*2440mm
Standard Thickness: 0.5-100mm
Color: Brownish yellow

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Product introduction

EPGC308 is a product made by impregnating epoxy resin matrix onto electronic-grade alkali-free glass fiber cloth and processed through heat pressing. This product meets the requirements of IEC60893-2004 and GB/T 1303.4-2009 standards. It has a brownish yellow color.


1.Remarkable mechanical strength at medium or elevated temperatures, including a tensile elongation of more than 50% even at higher temperatures. This ensures its resilience and ability to withstand mechanical stress effectively.
2.Consistent electrical performance, characterized by an insulation resistance of up to 1012Ω even after being immersed in water. This demonstrates its reliable and stable electrical insulation capabilities.
3.Enhanced dielectric strength under high humidity conditions (exceeding 35kV) when laminated parallel to the layers. This feature makes it particularly suitable for applications requiring dependable electrical insulation in humid environments.


Slot Wedges Machine parts Electromechanical Components
Terminal Boards and Tag Strips Bolt Insulation Presses and moulds
High-Voltage Switches Elements that support very high
dynamic efforts
High frequency equipment



General Properties:
Property Unit of measure Typical Value
Density gc/m3 1.90-2.05
Water Absorption (5mm) % ≤0.04
Flame Retardant UL94
Electrical Properties:
Property Unit of measure Typical Value
Electrical Strength ⊥ kV/mm, thickness=3mm ≥10.2
Electrical Strength ∥ kV ≥45
Tracking Resistance PTI
Insulation resistanceafter immersion 5*104
Mechanical Properties:
Property Unit of measure Typical Value
Flexural Strength MPa ≥340
Tensile Strength MPa ≥300
Compressive Strength ⊥ MPa ≥350
Modulus Of Elastricity MPa ≥24000
Impact Strength ∥ kJ/m2 ≥50
Thermal Properties:
Property Unit of measure Typical Value
Thermal Charactersitices 180
Disclaimer: The above values are based upon routine test data and do not form the basis of a supply contract. These products may be used in a diverse range of applications and whilst every effort is made to ensure the information in this data sheet is accurate, it must be stressed that it is the user’s responsibility to ensure suitability for the intended end use.



Q1: What are the differences between EPGC308 epoxy glass laminate sheet and G11 material?

EPGC308 epoxy glass laminate sheet has superior temperature resistance compared to G11 material.

EPGC308 can withstand temperatures up to 180°C and has a heat resistance class of H, whereas G11 material has a maximum temperature resistance of 155°C and a heat resistance class of F, which is lower than that of EPGC308. EPGC308 exhibits exceptional mechanical resistance at high temperatures, excellent electrical properties, and a higher comparative tracking index.


Q2: In which industries or applications is EPGC308 commonly utilized?

EPGC308 is widely employed in various industries, including high-voltage motor manufacturing, PCB production, dry and wet transformer fabrication, game controller assembly, and the production of screws, nuts, and other insulation components.


Q3: Can the size, thickness, or color of EPGC308 be customized?

Certainly! We offer customization options to meet specific requirements. Our team provides personalized services to ensure timely and high-quality processing of custom orders.


Q4: What is the recommended storage method for EPGC308?

To store EPGC308 properly, wrap it with packaging film and place it on a pallet. Store it horizontally in a dry, clean room at room temperature, away from moisture and open flames. The recommended storage period for EPGC308 is 12 months.

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