RB Products manufactures and supplies an extensive line of additive componentry products, which provide performance enhancements when added to a chosen base oil mixture. RB PIBSA is a polyisobutylene succinic anhydride (PIBSA) derived from highlyâ€reactive, 1000 molecular weight polybutene. It is produced via a chlorine-free thermal process. RB PIBSA is commonly used as an intermediate in the manufacture of oil-soluble dispersants for lubricating oil applications and in the manufacturing of emulsifiers for various applications, including explosives and metalworking.