Natural rubber binders are formulated from natural fume film, vulcanizing agents, accelerators, antioxidants and solvents (gasoline or benzene).

The bonding strength is not high, mainly used for the bonding between natural vulcanized rubber with low general requirements, such as force car inner tube, repair of rain shoes, etc. Often chemical modification of natural rubber to improve the bonding performance, the most meaningful species is chlorinated natural rubber, which is made from chlorine content of about 60% of chlorinated natural rubber dissolved in organic solvents, modified its bonding performance greatly improved, can be used for polar rubber and metal bonding.