G-11 Epoxy Glass Laminate Sheet | EPGC203 G11 High-Temp Board Manufacturer & Exporter

Name: G-11 / EPGC203 Epoxy Glass Cloth Laminate
Brand: SNM New Materials
SKU: G-11
Availability: InStock

G-11 / EPGC203 Epoxy Glass Cloth Laminate Sheet

G-11 (EPGC203) is a high-temperature epoxy glass cloth laminate that retains a high proportion of its mechanical strength at elevated temperatures — the heat-resistant upgrade of G-10.

Standard / Grade

IEC EPGC203 · NEMA G-11

Base Material

E-glass woven cloth + epoxy resin

Colour

Green / yellow

Density

≈ 1.8–1.95 g/cm³

Thickness Range

0.5 mm – 100 mm

Sheet Size

1020×1220 mm · 1220×2440 mm

Operating Temp.

Class F (155 °C)

Dielectric Strength

≥ 14 kV/mm (perpendicular)

Flexural Strength

≥ 340 MPa

Water Absorption

≤ 0.10%

Key Advantages

Why Choose Our G-11

🌡️

High-Temp Strength Retention

Retains a high share of mechanical strength at 155 °C, unlike standard G-10.

💪

High Mechanical Strength

Flexural strength ≥340 MPa for structural insulating components.

⚡

Excellent Insulation

High dielectric strength for high-voltage and high-temperature use.

📐

CNC Machinable

Cut and machined to precision insulation parts on request.

Description

G-11 / EPGC203 Epoxy Glass Cloth Laminate

G-11 / EPGC203 is the high-temperature counterpart of G-10, formulated with a heat-resistant epoxy system and hot-pressed from woven glass cloth. Its defining feature is the ability to retain a high proportion of its mechanical strength at elevated temperatures.

With Class F (155 °C) heat resistance, flexural strength ≥340 MPa and high dielectric strength, G-11 is ideal where both thermal and mechanical demands are high — high-temperature insulators, structural supports and aerospace components. Like G-10, it also performs well at cryogenic temperatures.

We manufacture G-11 from 0.5 mm to 100 mm thick as sheets or CNC-machined parts, with factory-direct export to the USA, Mexico, Brazil and Europe.

Applications

Typical Uses

High-Temp Insulators

Structural Supports

Cryogenic Parts

Switchgear

Standoff Insulators

Bus Bar Supports

Machined Parts

Aerospace Components

FAQ

Frequently Asked Questions

What is the difference between G-10 and G-11?

G-11 uses a heat-resistant epoxy system and retains more of its mechanical strength at high temperatures (Class F, 155 °C), while G-10 is Class B rated.

What is G-11 used for?

G-11 is used for high-temperature insulators, structural supports, switchgear, cryogenic parts and aerospace components.

What thicknesses do you offer?

We supply G-11 from 0.5 mm to 100 mm thick in standard and custom sizes, plus CNC-cut parts.

Is G-11 suitable for cryogenic use?

Yes, like G-10, G-11 retains good strength at very low temperatures and is used in cryogenic assemblies.

Do you export G-11 worldwide?

We export G-11 to the USA, Mexico, Brazil, Europe and globally, with free samples and full documentation.