These rubbers are interchangeable, with their quality parameters nearly identical. They are designed as alternatives to each other. Specific features: to produce rubbers, Voronezhsintezkauchuk uses styrene (styrene-butadiene rubbers), while SIBUR Togliatti uses alpha-methylstyrene (butadiene-alpha-methylstyrene rubbers). More information is available in the Rubbers
section on the official website of SIBUR Holding.