Reply To: Contaminated Lap?/Over Cutting Facets During Polishing › Forums › Beginner Questions › Contaminated Lap?/Over Cutting Facets During Polishing › Reply To: Contaminated Lap?/Over Cutting Facets During Polishing June 27, 2020 at 9:50 am #6662 LowjiberParticipant @Lowjiber Yes, the Batt is a solid lap… both sides are the same.