Rubi 4" Backup Pad — The Mount That Makes Your Pads Perform A polishing pad is only as good as what it's spinning on. This Rubi 4" hook-and-loop backup pad mounts 4" diamond polishing pads to your grinder or polisher and keeps them centered, secure, and in full contact with the surface — so your finish comes out even instead of chattered and patchy. A standard 5/8"-11 thread fits most grinders and polishers, the hook-and-loop face holds pads centered and snug, and a semi-flexible backing maintains consistent surface contact while damping vibration. The result is more consistent finishes with less chatter and less uneven pad wear. Why Tile Pros Choose It Keeps pads centered: Hook-and-loop face holds them secure and true Universal thread: Standard 5/8"-11 fits most grinders and polishers Even contact: Semi-flexible backing maintains consistent surface contact Less chatter: Damps vibration for smoother, more consistent finishes Even pad wear: Proper backing makes your polishing pads last longer Pro tip: Center each pad carefully when you press it on — an off-center pad wobbles, chatters, and wears unevenly. Replace the backup pad once the hook-and-loop stops gripping firmly; a pad that slips ruins both the finish and the diamond pad.
