Author: Shenzhen Bohr Chemical Co., Ltd
Date: May 17, 2025
Keywords: SEBS, SBC, Styrene-Ethylene-Butylene-Styrene, Thermoplastic elastomer, Block copolymer, Polymer distributor, Bohr Chemical, TPE supplier, SEBS supplier from China
Styrene-Ethylene-Butylene-Styrene (SEBS) is a high-performance thermoplastic elastomer (TPE) structured as a triblock copolymer. It consists of polystyrene end blocks and a mid-block of ethylene-butylene rubber. This unique molecular architecture provides SEBS with both the processing characteristics of thermoplastics and the functional performance of vulcanized rubber. Due to Hydrogenation SEBS exhibits exceptional UV resistance, thermal stability (up to 120°C), and superior aging properties compared to conventional SBS polymers. Its chemical structure grants excellent resistance to acids, alkalis, and polar solvents while maintaining flexibility across a wide temperature range.
SEBS finds extensive application across multiple industries due to its versatile property profile. In adhesives and sealants, it provides superior bonding strength and flexibility. The medical industry utilizes SEBS for tubing, stoppers, and device components due to its biocompatibility and sterilization resistance. Automotive manufacturers incorporate SEBS in interior components, weatherstripping, and under-hood applications.
The key advantages of SEBS include exceptional elasticity without vulcanization, excellent weatherability, good electrical insulation properties, and recyclability. Its ability to be easily processed using conventional thermoplastic equipment (injection molding, extrusion) makes it cost-effective for manufacturers. Additionally, SEBS can be blended with polypropylene and polyethylene to create customized compounds with tailored hardness and flexibility.
SEBS was initially developed in the 1970s by Shell Chemical (now Kraton Polymers) as an improvement over SBS copolymers, addressing the latter's limitations in weatherability and thermal stability. The hydrogenation of the butadiene mid-block to create ethylene-butylene segments represented a significant advancement in polymer science.
Prominent commercial brands include Kraton G series (Kraton Polymers), Tuftec (Asahi Kasei), and Septon (Kuraray). Other major manufacturers include TSRC Corporation and LCY Chemical Corp. The global SEBS market has experienced steady growth driven by increasing demand in consumer goods, medical devices, and automotive applications.
Shenzhen Bohr Chemical Co., Ltd is currently distributing high-quality SEBS from reliable Chinese manufacturers, serving both domestic and international clients. Our product portfolio includes various grades of SEBS suitable for different applications, from soft-touch overmolding to rigid structural components. With our established supply chain and quality control protocols, we ensure consistent material properties and timely delivery to meet your production requirements.
For inquiries regarding SEBS specifications, pricing, or technical support, please feel free to contact us anytime.