I want to know for conductive material do we need to use clear resin to clean piping like last time when we make white layer? Can we add regrind material or not? Last time we mix 100kg white MB with MF 400kg and I remember can keep line running around 3 hrs when use up the material, so total 1000kg conductive MB we maybe can keep line running around 6-7 hrs, is it correct? Thanks!