How to choose the right finish for polished concrete floors

Concrete is not limited to a dull, grey finish. This misconception can be misunderstood by some. Concrete can be painted in many different colors and finishes so that you can create the perfect look for your home.

It takes careful planning to achieve the perfect look for polished concrete floors.

This guide will help you select the right color, aggregate exposure (how much sand and small rocks are visible beneath the concrete surface), and finish for polished concrete floors in your home or business.

Selecting the right amount of aggregate exposure to polish concrete floors

You will need to decide how much aggregate you want to expose before concrete can be poured. This is the amount of stone visible below the concrete surface. The concrete surface can be ground to a different depth, which will affect the aggregate exposure. The exposure of aggregates can range from minimal to full-stone to nil.

Because it is easier to achieve, full exposure finishes can be more accommodating than minimal and nil exposures. You can achieve a stunning floor at any level of exposure with careful planning, quality concrete installation, and the right mix. It is vital to hire a professional concrete installer. You will get the best results using the most effective methods, tools, and practices.

Nil exposure finish

You can achieve a nil exposure finish by lightly grinding the concrete surface (minimum 3 mm). This allows concrete to have very few or no stones on its surface.

It is not easy to get a nil exposure result because the concrete must be poured flat. It is not easy to get a good-looking nil exposure floor. However, it is possible to work with a concrete expert who pours and polishes concrete.

Finish with minimal exposure

A light grind (grinding the surface 2 to 5 mm) can be used to minimize exposure. This will expose small amounts of stone. Because of its uneven nature, this is sometimes called a "salt and pepper" look. Some areas may not be exposed, while others may receive heavy exposure.

Minimal exposure is more economical than full exposure. However, it still achieves an industrial look.

Full exposure

Full exposure can be achieved by grinding the surface to a fine powder (grinding less than 5 mm). Full exposure allows you to see all stones on the surface.

For its unique look, full exposure is very popular in homes, restaurants, and retail shops. However, it is more labor-intensive as it requires heavy grinding.