Optical-grade synthetic felt polishing pad, .050" thick with no perforations — the standard carrier for pumice pre-polish on a flat lap. The dense, unperforated face holds the pumice slurry evenly right across the disc, so the pre-polish stage cuts consistently and hands a uniform surface to your final cerium polish.

At .050" it matches the thickness of resin diamond smoothing pads, so it drops straight into the same lap sequence without re-setting the machine. That also makes it a strong choice for facet work with cerium oxide.

• Diameter: 8 inch
• Thickness: .050 inch
• Face: solid — no perforations
• Use with: pumice pre-polish, or cerium oxide
• Fits: flat lap grinders

Part of the Flat Laps for Pumice range — see all six sizes, a comparison of felt vs MJ urethane, and how to get the best out of them.