DiamaPro 7" Wet/Dry Honeycomb Pad, 400 grit

- Mid-grit resin polishing pad for the refinement stage — 400 grit sits in the middle of the resin polishing sequence, used after coarser resin pads (50, 100, 200) have removed the metal-bond scratch pattern and started building the surface refinement. Begins to develop visible sheen and prepares the floor for the final gloss-building steps. Part of DiamaPro Systems' resin polishing pad line, calibrated for cutting speed and tool life.

- Flexible honeycomb resin design for even pressure and dust evacuation — the hexagonal pattern molded into the pad's face creates large channels that evacuate dust during dry use and water during wet use, preventing the diamond surface from loading up. The honeycomb structure also flexes around contours and lippage, maintaining consistent contact pressure across the entire pad face — important for an even sheen as the surface transitions toward high gloss.

- Wet/Dry dual-mode operation — usable in either condition: wet polishing reduces heat and extends pad life, dry polishing is more convenient on job sites without water access. Note: a backing pad with hook-and-loop attachment is required to mount this pad to a 7" hand grinder or stand-up edger. Compatible with most 7" handheld grinders and stand-up edge machines.

- Critical category distinction: resin pad, not metal segment — honeycomb pads are resin-bonded and run after the metal-bond grinding sequence is complete. A typical concrete polishing progression: metal-bond grinding (16/25/40/80 grit) → transitional / hybrid diamonds → resin polishing pads (50, 100, 200, 400, 800, 1500, 3000). At this stage the floor is starting to shine but is not yet at the high-gloss stage.

- The revitalization step for worn polished floors — per industry guidance, 400 grit is also the recommended starting point when restoring a severely worn polished concrete floor that doesn't need full re-grinding. The pad cuts enough to remove scuffs and surface haze without dropping back to the metal-bond stage. This is the "fix without re-grinding" pad in the polishing arsenal.