BIK OT Urea Crompton-Uniroyal Chemical Catalysts / Accelerators / Vulcanizing agents Chloroprene Rubber (CR) Rubber - Elastomer (Chloroprene, Butyl …) BIK ® OT Activator for foaming agents and accelerators Surface treated urea Activator for thiazole, thiuram and dithiocarbamate accelerators. Odor reducer when used with nitrosamine type blowing agents. Promoter for Celogen ® AZ in blowing NR, SBR, butyl, EPDM (Royalene ® ) and Neoprene rubbers. Relatively nonstaining and nondiscoloring. Lowers the decomposition temperature of Celogen AZ in cellular products. In retread compounds and general mechanical goods, as a low cost activator for thiazole, thiuram and dithiocarbamate accelerators. Relatively nonstaining and nondiscoloring surface treated urea. Used as activator for foaming agents and accelerators including thiazole, thiuram and dithiocarbamate accelerators. Reduces odor when used with nitrosamine type blowing agents. Can be used as a promoter in blowing NR, SBR, butyl, EPDM and neoprene rubbers.