Natural rubber was filled with 8 commercial carbon blacks covering range of rubber-grade products at different levels of filler loadings in order to investigate physical compound and vulcanizate properties. It was found that the curves of rubber property vs filler loading of both uncured compounds and vulcanizates can be superposed to one single master curve by introducing an effective volume fraction which is based on CDBP. The effective volume fraction, V_(Eff) was utilized to explain the variation of the stiffness of all rubber compounds. The surface area-corrected effective volume fraction, V`, was utilized to explain the formation of bound rubber, rebound and lambourn wear.