SABIC’s premiers new resin for large auto body panels

SABIC Innovative Plastics’ new conductive Noryl GTX PPO/polyamide thermoplastic resin formulated for greater dimensional stability in automotive body panels.

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SABIC Innovative Plastics (Pittsfield, Mass. and Bergen op Zoom, The Netherlands) has launched its new next-generation conductive Noryl GTX PPO/polyamide resin, which reportedly delivers 25 percent lower coefficient of thermal expansion (CTE) than previous grades, enabling greater precision in gap management for automotive body panels, at the same time helping to reduce overall vehicle weight.

The new conductive Noryl GTX 977 resin grade reportedly enhances dimensional stability for consistently precise part alignment in hot weather or sunlight. Improved CTE combined with retention of good impact and stiffness properties makes Noryl GTX resin suitable for larger vertical body panels such as fenders and tailgate skins, where weight savings can be significant.

SABIC says it was able to achieve a significant reduction of Noryl GTX resin’s CTE — dropping 25 percent from 9 to 7 — while largely maintaining its good impact resistance and stiffness. The resin also is designed for online electrostatic painting and delivers a Class A finish. Its conductivity reportedly improves paint transfer efficiency and coverage, and it can be processed using e-coats at bake temperatures of 200°C to 210°C (392°F to 410°F).