REMA TIP TOP Pre-Buff cleaners are specially formulated to dissolve mold-release lubricants and other contaminants, creating a clean surface before inner liner polishing. Pre-Buff cleaner is designed to remove (dirt, grease, water, mold-release lubricants, etc.) from the inside of tires and/or tubes before installing repairs. The CFC-free formula requires shorter drying times and is used for preparing inner tubes or tires.