Diamond Spongy Disc is a premium flexible polishing accessory designed for fine finishing and surface refinement of marble, granite, ceramic tiles, vitrified tiles, and engineered stone. It is constructed with high-quality industrial diamond abrasives bonded onto a soft sponge backing, which provides excellent flexibility and cushioning during polishing operations.This unique spongy structure allows the disc to easily conform to curved, uneven, and delicate surfaces, reducing the risk of scratches while ensuring uniform polishing results. It is widely used in stone fabrication, construction finishing, and restoration work for achieving smooth, glossy, and mirror-like surfaces.Diamond Spongy Disc is best suited for wet polishing applications, which help in cooling, dust reduction, and extending tool life. It is typically used in the final stages of polishing after grinding and honing.

Product Type

• Flexible Diamond Polishing Disc with Sponge Backing
• Used for fine polishing and surface finishing

 Application Materials

• Marble
• Granite
• Ceramic tiles
• Vitrified tiles
• Quartz / engineered stone
• Terrazzo
• Natural stone surfaces

 Construction / Material

• Industrial synthetic diamond abrasive particles
• Resin bonded polishing layer
• Soft sponge (foam) backing for flexibility and cushioning
• Velcro (hook & loop) backing for easy attachment

 Design Features

• Sponge-based flexible structure for curved and uneven surfaces
• Shock-absorbing backing reduces vibration and surface damage
• Uniform diamond distribution for smooth polishing
• Lightweight and easy handling during manual or machine use

 Size Options

• 3 inch (75 mm)
• 4 inch (100 mm)
• 5 inch (125 mm)
• 7 inch (180 mm)

 Grit Range

• 50 grit – Coarse grinding
• 100 grit – Leveling
• 200 grit – Scratch removal
• 400 grit – Smoothing
• 800 grit – Honing
• 1500 grit – Fine polishing
• 3000 grit – High gloss / mirror finish

 Thickness

• Approx. 5 mm – 10 mm (due to sponge cushioning layer)

 Operating Method

• Wet polishing recommended (for cooling and dust control)
• Dry polishing possible for light finishing work
• Compatible with hand grinders and polishing machines

 Performance Features

• Excellent flexibility for curved and detailed surfaces
• Smooth finishing without scratches or swirl marks
• Reduces vibration and operator fatigue
• Ideal for final polishing stages
• Produces high-gloss mirror finish on stone surfaces

 Applications

• Edge polishing of marble and granite slabs
• Sink and curved surface finishing
• Tile surface restoration and polishing
• Countertop finishing work
• Decorative stone detailing