... antioxidant DDA Chemical Name: Dialkylated diphenylamineUses:-Enviromental,effective antioxidant agent.-Suitable for in NR, SBR,NBR,IIR,and CR ... the agent is applivated in the product which have to endure heavy static or dynamic stress,like the tyre, tube,cable, ... belt,etc.-Inead of 4020(6PPD) when in the application, decrease the production Cost..-Dosage: 1.02.0 portion. antithermal agent ...