Quick Answer

The standard grit sequence for polished concrete is 50 → 100 → 200 → 400 → 800 → 1500 → 3000. Start at 50 only when the floor needs material removal; start at 200–400 for maintenance polishing. Move to the next grit only when the scratches from the previous one are uniformly removed.

Key Features of a Correct Grit Sequence

• Metal bonds first: 50–100 metal or coarse resin segments remove coatings and level the floor.
• Transition mid-range: 200–400 closes the surface and removes coarse scratches.
• Resin polishing: 800–1500 refines and begins to show gloss.
• High-gloss finish: 1500–3000 produces the final reflective sheen.

How to Choose the Right Sequence

Job Type	Starting Grit	Sequence
Full grind and polish (new slab)	50–100	50, 100, 200, 400, 800, 1500, 3000
Maintenance / light restoration	200–400	200, 400, 800, 1500, 3000
Gloss boost after densifier	800	800, 1500, 3000 + burnish

How to Use It

• Run each grit until the previous scratches are gone — check at an angle under raking light.
• Vacuum between grits so coarse dust does not scratch finer pads.
• Add a densifier after 400–800 and finish with 1500–3000 for maximum reflection.
• For a final high-sheen step, use burnishing pads for concrete floor polishing.

Frequently Asked Questions

Q: Can I skip grits to save time?

A: Skipping more than one step usually leaves visible scratches. In maintenance work you can start at 200, but do not jump from 200 to 800.

Q: Do I need 3000 grit on every floor?

A: No. Most commercial floors stop at 800–1500. Use 3000 for decorative, showroom-level gloss.

Q: How many pad sets do I need for a large floor?

A: Plan roughly one set per machine per 400–600 m², depending on hardness. Test a small area first.

Conclusion

Follow the sequence, do not skip steps, and keep the floor clean between grits. Start with a quality line such as diamond resin polishing pads for concrete and terrazzo and finish with burnishing pads for a professional gloss.