Eliminating Gap Failures & BSR Noise: The Ultimate Low-CLTE Plastics for Metal-Matching Assemblies

When standard automotive plastics are rigidly fastened to metal subframes, extreme temperature fluctuations create severe internal stresses, resulting in Buzz, Squeak, and Rattle (BSR) noises, structural warping, and critical misalignment of sensitive ADAS LiDAR sensors. To eradicate these engineering failures, Kumho-Sunny has engineered proprietary low-CLTE PC/ABS alloys (such as HAC8250TC-MD10 and MD15) utilizing isotropic mineral fillers. These advanced materials aggressively suppress thermal mobility to match metal, boosting flexural modulus up to 3,600 MPa while preventing thermal drift in precision components like roof-mounted LiDAR enclosures—a solution already proven in high-end vehicles like the BYD Yangwang U8. 

Ready to achieve flawless dimensional stability and eliminate thermal expansion failures in your assemblies? 

[Click here to download the full technical report and explore complete material property benchmarks]