Newly Rubber Active Filler-Silica Alumina Carbon Black
(GB-CKR90 and GB-KR90 are recommended)

The specific area has been improved by particular processing of coal series kaolin. Then the rubber's excess weld is strengthened after the surface polarity. It has reached and even surpassed the excess weld property of carbon black or carbon white in some fields in the rubber application of auto tire and EPDM.