Polyurethane buffer gaskets are high-performance elastic components. With 5-8 times the wear resistance of ordinary rubber and a wide temperature resistance range of -40℃ to 100℃, they have become the core material in the field of shock absorption and buffering. Their adjustable hardness range of Shore A 30 – A 95, combined with a compression permanent deformation of ≤ 10%, can achieve precise buffering in scenarios such as car suspension and electronic equipment shock protection. The breakthrough in bio-based polyurethane technology (with a bio-based content of over 60% and a product proportion of 33%) further promotes its environmental-friendly upgrade, and is widely used in elevators, camper van sealing, medical devices, and other fields, featuring advantages such as oil resistance, anti-aging, and lightweight.