SEPS YH-4030

SEPS 4030 is a hydrogenated Styrene-Isoprene block copolymer in the form of white powder or fluffy granule. It is mainly used as lubricating oil viscosity improver. It can improve the viscosity-temperature performance of lubricating oil, increase its viscosity index, and avail it strong thickening ability, good low-temperature performance, and good shear stability. It can meet the requirements of multi-grade internal combustion engine oil, particularly the long-span multi-grade internal combustion engine oil, it is a high-grade improver for lubricating oil viscosity index.