JPS Composite Materials
Products · Glass Fabrics

Glass Fabrics

As one of North America's largest weavers of glass fabrics, we manufacture high-reliability substrates engineered to exceed the strict thermal, mechanical, and electrical benchmarks required by the Printed Circuit Board-Copper Clad Laminate (PCB-CCL) and Aerospace industries.

E-Glass

Woven E-Glass serves as the backbone for Printed Circuit Board-Copper Clad Laminates (PCB-CCL), Aerospace primary and secondary structures, Power Generation and Insulation, and a multitude of Industrial Applications.

  • Electrical Insulation

    Delivers high dielectric strength and strong electrical resistivity to safeguard circuits.

  • Dimensional Stability

    Resists shrinking or stretching during extreme atmospheric transitions, maintaining uniform thickness.

  • Thermal Management

    Rapidly dissipates heat compared to standard organic fibers, keeping electronic assemblies stable.

  • High Strength-to-Weight Ratio

    Delivers exceptional structural reinforcement and aerodynamic durability.

  • High Volume Resistivity

    Isolates high voltages and prevents electrical leakage across machinery.

  • Low Moisture Absorption

    Prevents water ingress into the fibers, protecting laminates from blistering.

Low Dk / Low Df

Built for signal integrity

Where dielectric performance decides whether a high-speed board works.

Low Dk Glass

Our specialized Low Dk (Dielectric Constant) and Low Df (Dissipation Factor) woven fabrics are engineered at a microscopic level to optimize electromagnetic wave propagation for next-generation telecommunications.

  • Enhanced Signal Velocity

    Lowering the Dk value directly reduces signal propagation delay across high-speed PCB layers.

  • Ultra-Low Insertion Loss

    Minimizes the Dissipation Factor (Df), ensuring less signal energy is lost as ambient heat.

  • Spread Capabilities

    Uniform, flat weave geometries that eliminate micro-structural gaps, essential for modern radar and server backplanes.

S-Glass

Engineered with a high-silica formulation, S-Glass is designed for highly loaded aerospace structures, secondary military components, and extreme mechanical environments.

  • Superior Strength-to-Weight Ratio

    Yields roughly 30% greater strength than E-Glass, providing an exceptional strength-to-weight ratio.

  • High Thermal Resistance

    Retains its mechanical integrity and resists structural degradation under intensive flight friction and processing heat.

  • Impact & Fatigue Resistance

    Protects structural laminates against continuous aerodynamic stress, vibration, and localized impact.

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