100x100mm 400 Grit Diamond Sandpaper Sheet

The 100x100mm 400 Grit Flexible Diamond Sandpaper Sheet is engineered for lapidary artisans and finishing professionals transitioning into fine pre-polishing. Utilizing premium resin-bonded diamond abrasive on a pliable, tear-resistant cloth backing, it delivers consistent surface contact across flats, bevels, and curved cabochons.

This 400-grit sheet effectively erases 240-grit scratch patterns while preparing gemstones, fine art glass, ceramics, and hardened metals for satin-to-mirror polishing stages.

Key Applications:

• Lapidary & Gemology: Pre-polishing cabochons, smoothing facets, and preparing agate, quartz, and jade surfaces.
• Glass Working: Refining bevels, smoothing cut edges, and polishing frosted art glass.
• Ceramics & Composites: Micro-scratch removal and smooth edge blending.
• Precision Metalworking: Tool and die smoothing, mold refining, and non-ferrous alloy finishing.

Technical Features:

• Dimensions: 100 x 100 mm
• Grit: 400 Grit (Pre-Polishing / Surface Refinement)
• Abrasive Material: Premium Industrial Diamond
• Bond Type: Resin Bond
• Working Method: Wet or dry hand sanding and block sanding.