Noryl GTX 9500: High‑Performance Nylon/PPE Resin for Automotive Under‑hood Applications

The latest addition to SABIC’s unfilled Noryl GTX family, Noryl GTX 9500, delivers exceptional dimensional stability and mechanical resilience in hot, humid automotive under‑hood environments. Compared with conventional nylon 6 and nylon 66, this resin maintains a superior balance of properties under the extreme temperatures and moisture levels typical of vehicle engines, while matching their high‑flow and high‑temperature performance.

Its robust dimensional stability across a wide temperature and humidity range, combined with excellent flow characteristics, enables manufacturers to design ultra‑thin walls, reducing weight without compromising structural integrity. Ideal applications include junction boxes, connectors, and any component that demands precision dimensional control. Additionally, GTX 9500 shows promise as a base resin for carbon‑fiber‑reinforced thermoplastic composites used in structural and body parts, extending its value to aerospace, marine, and industrial sectors.

Nylon resins notoriously absorb moisture, especially when heated, leading to softening, stiffness loss, and warpage. Noryl GTX 9500 dramatically reduces water and moisture uptake—even at temperatures up to 150 °C (302 °F). In laboratory tests, it absorbed 21 % less moisture at equilibrium than nylon 66 and 58 % less than nylon 6. Correspondingly, its dimensional change at equilibrium—measured in both flow and cross‑flow directions—was only 0.29 %, compared to 84 % for nylon 66 and 165 % for nylon 6. This superior dimensional stability translates into lower warpage, reduced scrap rates, and the feasibility of thinner‑walled designs that aid weight reduction.

Beyond dimensional performance, GTX 9500 excels in retaining key mechanical properties under wet conditions. Flexural modulus, tensile modulus, and flexural strength remain higher than those of nylon 6 and nylon 66 when exposed to moisture. Compared with existing Noryl GTX grades, it offers the lowest water uptake, best dimensional stability, and highest property retention, making it a leading choice for demanding automotive, aerospace, and marine applications.