Tbztd is a safe secondary amine accelerator; it has been developed to replace thiurams such as tmtd in case where the presence of harmful nitrosoamines is of concern. The dibenzylnitrosoamine is not carcinogenic, according to published literature, tbztd is a fast curing primary or secondary accelerator in nr, sbr and nbr applications. In modified cr, tbztd is a retarder when used with etu. Compared with tmtd, tbztd is safer processing and has longer scorch time. Bag:25kg or other kind of package clients need