# What Is Polished Concrete? The Full Process

> Polished concrete is the slab itself, mechanically ground through a grit progression to a finished surface. Here

URL: https://austinconcretefinishes.com/guide/what-is-polished-concrete-and-how-done/
Last-Modified: 2026-06-25

![Polished concrete with diamond burnishing progression](/images/featured/polished-concrete-floor-with-diamond-burnishing-pr.webp)

## A finishing process, not a coating

Polished Concrete

[/polished-concrete/ →](/polished-concrete/)

 is the slab itself, mechanically ground and densified to a finished surface. No epoxy, no resin, no coating. The floor you see is the concrete that was already there.

The process uses planetary grinders with diamond-tooled heads, working through a grit progression. Early passes (30-100 grit) remove the rough surface and any old coatings. Mid passes (200-400 grit) refine. Final passes (800-3000 grit) polish to the chosen gloss level.

![Planetary grinder in the grit progression](/images/content/planetary-grinder-with-diamond-pads-grinding-concr.webp)

## Densifier and sealer

Between grit passes, a lithium-silicate densifier is applied. The densifier soaks into the concrete and reacts chemically with the surface, hardening it dramatically. It’s the secret behind polished concrete’s durability — the surface is harder than the original slab by a meaningful margin.

After polishing, a penetrating sealer or stain-guard locks the surface against staining from oil, wine, and everyday spills.

## Why it’s our #1 service

Polished concrete is the most durable, longest-lasting decorative concrete finish we install. There’s no coating to peel, no sealer to recoat every 5 years, no fade. The slab is the floor. Done right, it lasts 20+ years residentially with minimal maintenance.

## Frequently Asked Questions

Is polished concrete a coating? +

No — it's the actual slab, mechanically refined. No coating to peel.

How long does install take? +

3-5 days for a typical residential floor depending on size and gloss level.

Will any slab take polish? +

Most slabs do. Heavily damaged or contaminated slabs may need overlay first.

Related Service

## Learn more about Polished Concrete

Mechanically polished, low-maintenance concrete floors for homes and businesses.

View Polished Concrete

[/polished-concrete/ →](/polished-concrete/)

## Related Guides

### How Long Does a Polished Concrete Floor Last?

Polished concrete lasts 20+ years residentially and 10-20 years commercially. The slab is the finish — there's no coating to fail.

[How Long Does a Polished Concrete Floor Last? →](/guide/how-long-does-a-polished-concrete-floor-last/)

### Is My Existing Slab a Good Candidate for Polishing?

Most slabs polish well. Old, contaminated, or extremely cracked slabs may need overlay first. Here's how to tell.

[Is My Existing Slab a Good Candidate for Polishing? →](/guide/is-my-existing-slab-good-candidate-for-polishing/)

### Is Polished Concrete Slippery or Hard to Maintain?

Polished concrete is no slipperier than tile and easy to maintain with neutral cleaner and occasional reseal.

[Is Polished Concrete Slippery or Hard to Maintain? →](/guide/is-polished-concrete-slippery-or-hard-to-maintain/)

### Polished Concrete Cost per Square Foot in Austin

Polished concrete in Austin typically runs $5-$12 per square foot. Gloss level, slab condition, and dye drive the range.

[Polished Concrete Cost per Square Foot in Austin →](/guide/polished-concrete-cost-per-square-foot-austin/)