Readers ask: Best Concrete Grinder?

What is the best concrete grinder?

5 Best Concrete Grinder Reviews 2021

  • Bosch CSG15 Concrete Surfacing Grinder.
  • Bosch CSG15 is a 5” electric surface grinder tool with a powerful 12.5 amps motor for concrete grading, concrete applications, and surface preparation.
  • DEWALT DWE46253 is another powerful and effective handheld concrete floor grinder.

Can you grind concrete with an angle grinder?

An angle grinder can be used to level, smooth and polish concrete by grinding it down. They can also be used to remove paint and floor adhesives. To grind concrete with a angle grinder you need a diamond cup wheel, a dust shroud attachment, and a vacuum cleaner.

How much does it cost to grind a concrete floor?

Economical: You can expect to pay between $3 and $12 per square foot for polished concrete, depending on your location and the complexity of the project. Polished concrete pricing is dependent upon how many levels of grinding are needed to get the floor to a smooth surface.

Can you grind down cement?

Yes, all concrete can be polished. Any pre-existing concrete can be ground down and smoothed with the right devices and skills. But, the ease and difficulty of the concrete grinding can vary depending on how old the slab is. In general, older concrete is much easier to grind.

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Do you need to seal concrete after grinding?

It is always a good idea to seal your concrete floor after grinding. Grinding your concrete floor will smooth out the surface and bring out the speckled or marbled appearance of the aggregate, which increases the appearance and makes for a more decorative finish.

What can I use to grind concrete?

For a small job, rent an angle grinder equipped with a diamond grinding wheel ($50 a day or less). It’s the perfect tool for taking down just a few high spots or tough-to-reach areas near walls. Be sure the one you rent comes with a means of attaching a vacuum to suck up the dust.

How do you sand a concrete floor by hand?

Attach 180-grit sandpaper, which is a fine grit, to a pole sander, hand sander or floor sander. Put on a respirator, and sand the entire surface of the floor lightly. When the sheen is off the surface, scuff sanding is complete.

Can you polish existing concrete slab?

Almost any structurally sound concrete floor, whether new or old, can be polished. However there are some exceptions, for example with new floors no special mix design is required to achieve good results – although the floor should be in place at least 28 days before polishing begins to ensure adequate curing.

Why is polished concrete so expensive?

The process of polishing concrete



Grind and seal are the least expensive, because fewer grits are needed. Mechanically polished concrete must use finer and finer grits of concrete until the required gloss level is achieved. This is why it’s more expensive.

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Is polished concrete cheaper than hardwood?

It is possible for a “fancy” concrete floor to be more expensive than an economical hardwood floor. In general, a tight budget will find concrete floors more budget-friendly, but it depends on the design and finish of the concrete floor.

Is grinding concrete dangerous?

Grinding and polishing of concrete will release the dangerous silica-bearing dust in to air, exposing construction workers and others. Breathing the silica dust can result in dangerous, irreversible, untreatable diseases, including silicosis and lung cancer (that’s the tragedy).

Why do you grind concrete?

Grinding concrete removes all imperfections and inconsistencies in the concrete, resulting in a smooth and usable surface. Old and damaged concrete surfaces can be restored to their former glory and used for years and years to come.

Can you sand cement?

The good news is that concrete can be sanded with relative ease when the proper equipment is used, such as a good concrete sandpaper (made using diamond instead of sand). There are also three different types of sanded finish you can achieve, depending upon the tools and amount of removed material.

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