Description SPONTEC Diamond Grinding Disc (Velcro – 4 inch – 50 Grits) Tough on imperfections. Gentle on your floors. Introducing SPONTEC, the world’s first adaptive diamond sponge disc — a revolutionary solution in floor polishing. Whether you’re working with marble, terrazzo, quartz, or epoxy, SPONTEC delivers deep restoration without the risk of scratches, thanks to its soft yet high-performance sponge structure. Each disc is made with advanced diamond matrix technology and features internal pores that adjust to surface irregularities — giving you full contact, consistent pressure, and flawless results on even the most sensitive floors. Why SPONTEC Stands Out: Non-scratch polishing for high-end finishes Removes fine lines, haze, and oxidation marks Highly flexible sponge layer adapts to uneven floors Restores natural color depth and wet-look gloss Ideal for marble, terrazzo, granite, epoxy, quartz, and more Full grit range: From 50 to 10,000 – covers correction to final shine Compatible with major machine types: Velcro, 5/8”, M14, 11F # Before use: Wet and open disc pores for best performance SPONTEC isn’t just a tool — it’s a game-changer in surface care, combining softness and strength like never before.