In the world of industrial materials, G10 glass fiber laminate stands out as a versatile, high-performance composite. Built on a foundation of woven fiberglass cloth and epoxy resin, G10 is engineered through high-temperature, high-pressure lamination, resulting in a material that delivers exceptional electrical insulation, mechanical strength, and dimensional stability.
So, what makes G10 such a reliable choice for critical applications? The answer lies in its multilayer composite structure — and the unique advantages it brings to diverse industries.
G10 sheets are manufactured through a laminated structure made up of multiple layers of fiberglass cloth, each impregnated with thermosetting epoxy resin. These layers are stacked, aligned, and cured under heat and pressure to create a homogenous, compact material.
1. Consistent dielectric strength throughout the sheet
2. Uniform mechanical performance in all directions (isotropic behavior)
3. Superior thermal resistance and moisture stability
4. Minimal warping or delamination under high load or temperature conditions
With a dielectric strength often exceeding 500 V/mil, G10 excels in electrical insulation even in humid or high-voltage environments. It’s a preferred material for circuit boards, switchgear insulation, and electrical enclosures.
Thanks to the fiberglass matrix, G10 exhibits high tensile and flexural strength, making it resistant to mechanical stress, wear, and impact — critical for structural components and tooling.
The epoxy matrix creates a non-porous surface, preventing water absorption and maintaining performance in damp or outdoor conditions, which is essential in marine, aerospace, and outdoor electronics applications.
G10 retains stability up to 130–150°C (depending on resin system) and is self-extinguishing, meeting flame-retardant standards such as UL 94 HB. For higher requirements, users may opt for G11 or FR4.
1. PCB substrates and electrical insulation boards
2. Battery pack separators and motor slot wedges
3. Structural support in drones, RC hobby gear, and tools
4. Knife handles and composite grips (due to aesthetics and grip texture)
5. Aerospace and marine paneling
6. Mechanical jigs and fixtures for industrial use
Choosing G10 means selecting a material that offers a balance of strength, stability, and reliability. It performs under pressure, resists moisture, and maintains integrity over time — all while being cost-effective and customizable.
As global industries push for higher-performance materials in smaller, more efficient systems, G10 remains a trusted standard across electronics, energy, transportation, and precision engineering.
We offer full customization, fast delivery, and expert support for your insulation and structural needs.
Contact us today to learn more or request a quote.
