Other name: General purpose furnace black ; GPF Character: Iodine absorption number 36g /kg and DBP Adsorption No is 90cm 3 /100g , it has high strengh ability of furnace black and quick extrude ability, high rebound elasticity and flexibility and it is widely used. Application: It can be used to produce bracing ply, cord fabric rubber, inner tube, bike tube, rubber hose, adhesive tape, cable, shoes and other rolled products, mouled products etc. Using method and function: This kind of carbon black can be used for all kinds of rubber products. Comparing with semi-hard carbon black, this kind of carbon black has density structure and particles is finer, It is easy to disperse in the rubber and has good stretching ability, flexibility, the shortcoming is that its stretching ratio is a little lower.