AGY (USA), a leading producer of high-performance glass fiber reinforcements, is proud to announce the development and commercial launch of its new single-end lightweight S2 Glass® roving, engineered to deliver exceptional strength, stiffness, and impact resistance for advanced composite applications.

This next-generation roving is designed to meet the needs of demanding aerospace, defense, and high-performance industrial markets, where maximizing structural efficiency and reducing weight are critical.

Key benefits of the new lightweight single-end S2 Glass roving:

• Performance over traditional E Glass
  S2 Glass performance studies show significant performance gains in stiffness, strength, and impact, especially in weight-sensitive or survivability-critical applications.
• Overcoming traditional limitations
  New single-end format allows for thinner, lighter, and more versatile laminate design.
• Improved strength and stiffness
  Optimized for use in unidirectional (UD) prepreg and non-crimped fabric (NCF) manufacturing, this single-end format delivers superior mechanical properties compared to traditional assembled rovings.
• Enhanced ballistic and impact resistance
  With performance comparable to competitive thin-ply laminates, this new roving enables high fiber volume and low-matrix formulations, optimizing impact resistance and energy absorption.
• Improved radar transparency
  15-20% lower dielectric constant than E Glass and the ability to make strong, thinner structures makes S2 Glass a cost-effective solution for radomes in weight-sensitive applications.
• Combined thermal and electrical resistance
  S2 Glass allows higher operating temperatures, increased fatigue life, and electrical isolation for high-performance modern electric motor applications.
• Tailored for manufacturing efficiency
  Supplied on three-inch cores, the standard for industry fiber processing, this roving is compatible with existing composite production processes. Packages are designed for seamless UD and NCF integration.
• Advanced sizing chemistry
  AGY’s proprietary high-performance sizing systems ensure optimal fiber-matrix bonding, unlocking the full potential of the S2 Glass reinforcement.

“With this advancement, we are opening the possibility for designers to use the world’s strongest glass fiber in many new applications. We’re excited to partner with OEM’s on advancing the performance of their next-generation products,” stated Patrick Hunter, Executive Vice President, Commercial for AGY.