Reply To: Quartz polish? › Forums › Polishing › Quartz polish? › Reply To: Quartz polish? March 31, 2016 at 5:30 am #2472 Gregory HaysParticipant @gregoryhays I use a Batt with WD40 wiped almost dry with a blast of Crystallite spray 50k diamond. This is all following 3k prepolish. Greg San Marcos, CA