# Burnished Concrete Floors

> Burnished concrete is a concrete floor ground and sealed at the lowest level of aggregate exposure, leaving the smooth cement cream intact so almost no stone shows through and the finish reads as a soft, low sheen.

- **Provider:** Industrial Concrete Grinding and Cutting PTY LTD (ICGC)
- **Page:** https://icgc.com.au/burnished-concrete/
- **Service area:** Gold Coast, Brisbane and Northern Rivers, Australia
- **Phone:** 0408 709 770

## Key facts

- Burnished concrete exposes minimal aggregate. Only the cement cream is visible.
- The finish is a soft low sheen, not a mirror gloss.
- No densifier is used, unlike polished concrete.
- Burnished concrete is the most economical of the ground concrete finishes because it takes the fewest passes.
- The term has two meanings in Australia. Some concreters use burnished, or burnt finish, for a slab power-trowelled while still curing. ICGC uses the polished concrete trade meaning: the cream level of exposure on a ground, cured slab.
- A ground burnish can be applied to any cured slab, including existing floors years after the pour.
- Burnished concrete suits warehouses, garages, alfresco areas and commercial fitouts.
- Known limitations: colour variation in the cement cream, slab cracks show through, and the surface is more absorbent than polished so sealing quality matters more.

## Burnished compared with honed and polished concrete

All three finishes start with a diamond grind on a cured slab. The difference is grind depth, how much aggregate that exposes, and the final sheen.

| | Burnished | Honed | Polished |
|---|---|---|---|
| **Aggregate exposure** | Minimal. Cement cream only, very little stone visible. | Salt and pepper through to full stone. | Salt and pepper through to full stone. |
| **Sheen** | Soft, low sheen. | Matte to satin. | High gloss and reflective. |
| **Grinding** | A light surface pass only. | Roughly 200 grit for a light hone, 400 for medium. | Through the finer grits, typically 800 to 3000. |
| **Densifier** | Not used. | Not used. | Applied between passes to harden the surface. |
| **Appearance** | Most likely to show natural colour variation in the cement cream. | Some variation, softened by the visible aggregate. | Most uniform, as the exposed stone dominates the look. |
| **Outdoor use** | Yes, with a UV-stable, slip-resistant sealer. | Yes. Holds texture well for grip. | Not recommended. Gloss finishes are an indoor product. |
| **Relative cost** | Lowest of the three. Fewer passes means less time on site. | Mid range. | Highest. The most passes and the most product. |
| **Best suited to** | Warehouses, garages, alfresco areas, and anyone wanting an even floor without visible stone. | Living areas, kitchens, driveways, pool surrounds, commercial fitouts. | Statement interiors, showrooms, retail and hospitality. |

## Where burnished concrete is used

- Warehouses and Industrial Floors: Hard-wearing and easy to clean without the cost of a full polish. Handles forklift traffic, takes line marking, and brightens a space by reflecting overhead light.
- Garages and Sheds: Sealed against oil and tyre marks, and far easier to sweep than bare concrete. A fraction of the cost of an epoxy coating, with nothing to peel or delaminate.
- Alfresco and Outdoor Areas: Ground to retain grip and sealed with a UV-stable, breathable sealer built for Queensland conditions.
- Commercial Fitouts: A neutral, even floor that lets the fitout do the talking. Fast to install, which matters on a tight build programme.

## How a burnished concrete floor is made

- Slab Assessment: We test hardness and check for cracks, patches and colour variation. Because a burnished finish leaves the cement cream on show, slab condition drives the result more than on a deeper grind.
- Preparation: Existing tiles, adhesive, paint or coatings come off in-house. The surface is taken back to clean, sound concrete before finishing starts.
- The Burnish Pass: Diamond tooling takes a light pass, smoothing the surface and evening the sheen while leaving the cement cream intact. The cut is deliberately shallow. Going deeper would expose aggregate and turn it into a honed floor.
- Repairs: Cracks and surface defects are filled with colour-matched filler and blended in. These repairs show more on a burnished floor than on exposed aggregate, so we take extra care matching them.
- Sealing: This matters more here than on any other finish, because cement cream is porous. Interiors get a penetrating, stain-resistant sealer. Outdoors gets a UV-stable, breathable one. Two coats minimum.
- Handover: Light foot traffic straight away, full cure in 24 to 48 hours. We leave the site clean and hand over care instructions.

## Frequently asked questions

### What is burnished concrete?

Burnished concrete is a ground and sealed concrete floor finished at the lowest level of aggregate exposure. The grinding takes off just the top surface, so you keep the smooth cement cream and very little stone shows through. The result is a soft, low sheen rather than a mirror gloss. The term is used two ways in Australia, which causes a lot of confusion. Some concreters use burnished, or burnt finish, for a slab power-trowelled to a sheen while it is still curing. In the polished concrete trade it means the cream level of exposure on a ground floor. We do the second: we grind cured slabs. If another trade has quoted you burnished concrete, tell us what you are after and we will confirm which finish you are actually looking at.

### What are the problems with burnished concrete?

Three things are worth knowing before you commit. Because very little aggregate is exposed, you are looking at the cement cream, and cream varies across a slab, so expect some natural colour variation and mottling. It is a floor finish, not a coating, so any cracking that develops in the slab underneath will show. And a burnished surface is more absorbent than a polished one, so sealing quality matters more. None of these are dealbreakers. They are the reason we assess the slab before quoting rather than after, and why we do not recommend burnished for every job.

### Does burnished concrete stain?

It can if it is not sealed properly, and this is the most common complaint people raise about burnished floors. With minimal aggregate exposed there is more cement paste at the surface, and cement paste is porous. Oil, wine, and acidic spills will mark an unsealed or under-sealed floor. We apply a penetrating sealer that soaks into the surface rather than sitting on top, and we specify a higher-spec sealer for kitchens and hospitality. Wipe spills promptly and use a pH-neutral cleaner and the floor holds up well.

### What is the difference between honed and burnished concrete?

Both are ground and sealed with a matte to low-sheen result. The difference is how deep the grind goes. Burnished stops at the cream layer so almost no stone is exposed and the floor reads as a smooth, even surface. Honed goes deeper and brings up salt-and-pepper or fuller aggregate, so you see the stone in the slab. If you want the concrete to look uniform, go burnished. If you want to see the aggregate, go honed.

### Can I burnish concrete myself?

Hiring a hand grinder and doing a small area is possible, but getting an even result across a full floor is difficult. The hard parts are keeping the grind consistent so you do not end up with visible swirl marks or patchy exposure, managing silica dust safely, and choosing and applying the right sealer. Commercial planetary grinders and dust extraction are what make the finish even and the work safe. If you want to talk through whether your project suits a DIY approach, call us and we will give you a straight answer.

### What is the difference between burnished, honed and polished concrete?

It comes down to how far the grinding goes and how much sheen you end up with. Burnished sits at the lighter end: ground smooth, sealed, soft sheen, with very little stone showing. Honed goes further and exposes more aggregate for a matte or satin surface. Polished runs through the finest grits with a densifier applied between passes to produce a high-gloss, reflective floor. Burnished is usually the most economical of the three because it takes fewer passes.

### Can you burnish an existing concrete slab?

Yes. Grinding a cured slab is the core of what we do. Existing slabs often produce a better result than a fresh pour because fully cured concrete is harder and more stable. We assess the slab first, checking hardness, cracks, patches and any existing coatings, then grind and seal to the finish you are after.

### How much does burnished concrete cost?

It depends on the size of the area, the condition of the slab, and whether anything needs removing first. Tiles, adhesive or old coatings add preparation time. Mobilisation costs for commercial-grade equipment are much the same regardless of area, so smaller jobs carry a higher rate per square metre. Send us the details of your project and we will come back with a clear quote, usually the same day.

### Do you remove tiles before burnishing the floor?

Yes, and we do it in-house. Most floor grinders do not handle tile removal, which leaves you coordinating two trades. We remove the tiles, grind off the adhesive bed underneath, repair the slab, then burnish and seal. One team, one quote, from demolition through to handover.

### Is burnished concrete slippery?

A sealed burnished floor has a soft sheen rather than a gloss, so it holds more grip than a polished floor. For wet areas, outdoor entertaining and pool surrounds we adjust the grind and specify a sealer with a slip-resistant additive. Tell us where the floor is going and we will match the finish to it.

### Can burnished concrete be used outdoors?

Yes. Outdoor floors are ground to retain a little more texture for grip and sealed with a UV-stable, breathable sealer built for Queensland conditions. It suits driveways, patios, pathways and pool surrounds. Indoor floors get a penetrating, stain-resistant sealer instead.

### How long does a burnished concrete floor take?

Most jobs run one to three days on site depending on area and slab condition. Tile or coating removal adds time before grinding starts. The floor takes light foot traffic straight after sealing and reaches full cure in 24 to 48 hours. We confirm the timeline with you at quote stage so it can be slotted into your build programme.

### Is burnishing concrete a dusty process?

No. We run dust extraction continuously through the grind, with HEPA filtration capturing silica dust at the tool. That means no plastic sheeting over doorways and no dust settling through the rest of the house or building. It matters on occupied sites and on renovations where people are still living in the home.

### How do you maintain a burnished concrete floor?

Sweep or vacuum regularly and mop with a pH-neutral cleaner. Avoid acidic or abrasive products, which break down the sealer. Depending on traffic, the sealer is worth refreshing every few years. We hand over care instructions when we finish, and we can come back and re-seal when the time comes.

## Related pages

- [Honed Concrete Floors](https://icgc.com.au/honed-concrete/): Matte to satin ground finish. Grit levels, indoor and outdoor use, honed versus polished.
- [Polished Concrete Floors](https://icgc.com.au/polished-concrete/): Mechanically polished floors. Cream polish through to full aggregate reveal, densifier process.
- [Tile and Adhesive Removal](https://icgc.com.au/tile-adhesive-removal/): Tile stripping plus adhesive grind-off, done in-house rather than subcontracted.
- [Dust-Free Concrete Grinding](https://icgc.com.au/dust-free-concrete-grinding/): HEPA-filtered extraction, silica control, and working in occupied buildings.

## Contact

- Phone: 0408 709 770
- Email: admin@icgc.com.au
- Request a quote: https://icgc.com.au/get-a-quote/
- Based in Burleigh Heads, Queensland, serving Gold Coast, Brisbane and Northern Rivers, Australia