This product is mainly used inthe production process .In the processes of tread,tread top,tyrewall and tread bracing layer for radial tyre,the prefabricatedrubber sheet is required to prevent from distortion andstretching;while this soft,stiff and neat isolating fresh-keepingfilm is the ideal material to keep the rubber sheet fresh,for itcan be fully applied to the prefabricated rubber sheet,yet easy topeel .With all preformance indexes,such as textilestrengh,elongation at break,tearing strength,melting point,contentof copper,that of manganese,acetone abstract,having met theapplication requirements ,this product are popular among andaccepted by world major tyre manufacturers.