● Liquid styrene butadiene rubber is a low molecular weight copolymer of butadiene and styrene, with a molecular weight of 2000-10000. It possesses excellent electrical insulation and physical properties, and is often used in fields such as circuit boards, adhesives, and sealing materials. Compared with liquid polybutadiene (LPB), LSBR is with a higher glass transition temperature and better heat and wear resistance. Replacing LPB with LSBR can improve the adhesive flow phenomenon during the processing of copper clad plates.