BASF Unveils Ultradur RX: Advanced PBT Protects Automotive Radar Sensors

For automotive radar sensors—particularly those in autonomous vehicles—BASF Corp. has introduced a new modified PBT, the Ultradur RX series. Designed to withstand harsh environmental media such as spray water, oils, and road salt, this material delivers robust protection for sensor housings and shields the sensitive electronics from disruptive electromagnetic waves emitted by nearby vehicles.

Dr. Erik Gubbels, R&D Ultradur expert at BASF’s Performance Materials division, explains: “The various variants of Ultradur RX are engineered to absorb and attenuate interference radiation in the 76‑81 GHz band, thereby providing a high level of protection for the electronics housed within radar modules. This dielectric solution meets the rigorous standards required for sensor components and is ideal for use as a rear housing cover or as a barrier behind the sensor’s circuit board.”

As electromagnetic interference (EMI) in road traffic intensifies, it is essential not only to reflect unwanted signals but also to absorb them, thereby reducing their impact. Ultradur RX achieves this by suppressing interfering radar radiation, which improves the fidelity of the desired signal and enhances overall safety. Because it is a functionalized plastic, Ultradur RX offers a lightweight alternative to traditional metal housings, contributing to vehicle weight reduction and improved energy efficiency. The material’s absorption characteristics vary with geometric boundary conditions, so the Ultradur RX portfolio includes multiple grades tailored to specific application requirements.

Explore the Ultradur RX series and discover how it can elevate your automotive radar sensor designs. Visit BASF for more information.