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Zoltek (Bridgeton, Mo., U.S.) is presenting its latest unidirectional (UD) woven fabric innovations, the PX35UD0300EPW and PX35UD0600EPW, which stand out distinctly from the company’s existing PX35 series, offering a range of features and advantages designed to meet the evolving needs of the composites industry.

Unlike previous offerings, PX35UD0300EPW and PX35UD0600EPW are woven, heat-bonded UD fabrics using a distinctive stabilization technique for easy handling during wet layup. The weft bonding yarn enables custom cutting on-site to minimize scrap. This structure enhances ease of handling and increases the fabric’s strength and stability. The woven nature ensures clean and efficient cutting minus frayed edges.

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The fabrics are comprised of Zoltek PX35-1 (multi-compatible with epoxy and vinyl ester) and PX35-7 (compatible with vinyl ester) 50K continuous tow carbon fiber, enhancing performance and durability. 

According to Zoltek, the U.S.-made PX35UD0300EPW and PX35UD0600EPW fabrics offer a strategic advantage in the North American market, particularly in government-supported and defense projects. Previously, Zoltek says it only offered stitched UD types; this advancement, however, enables the company to target infrastructure applications more effectively and provide shorter lead times.

Other potential applications are listed, including reinforcing concrete structures; lining pipes, tanks and silos; and constructing water reservoirs, tunnels, bridges, chimneys and columns.

Zoltek is actively seeking to engage with companies qualified to use fiber-reinforced polymer (FRP) systems where its material can seamlessly replace currently used materials. Additionally, Zoltek aims to attract businesses looking to develop their own FRP systems with their own resins.