GB/T 30309-2013

GB/T 30309-2013 specifies the classification, technical requirements, test methods, inspection rules, and packaging for polysulfide silane coupling agents. It is primarily applied in the rubber and tire manufacturing industry, where these agents are used to improve the bonding between inorganic fillers (like silica) and organic rubber matrices, enhancing the mechanical properties and durability of products such as tires and industrial rubber goods. The standard ensures consistent quality and performance for manufacturers and end-users in chemical engineering and materials processing contexts.