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(Depth Of Grind)
A Grade A depth of grind is simply a cream polish. The depth of grind does not even break the surface of the concrete. This is typically best achieved by using only polishing tools along with chemicals to strengthen and seal your concrete.
Although this is not even considered "Polished Concrete" per say, Grade A floors will perform better than an untreated slab because they have been chemically treated and burnished.
Grade B depth of grind, is considered a Light Aggregate exposure. In the industry this is known as a Salt n Pepper grind. This is because the tiny aggregate exposure resembles salt and pepper in size. This is a very popular option as it is the most economical way to reap the benefits of polished concrete flooring. And its uniformity is pleasing to the eye.
Grade C depth of grind is considered medium Aggregate exposure. This is very popular because it has a mix of larger aggregate with the salt n pepper. And the surface is flatter than Grade B. Often times this leads to a better overall polish than a B grade and takes care of more surface blemishes due to the deeper grind. The slightly smoother surface leads to an increased average performance than a Grade B over time. So it is recommended for higher traffic areas.
Grade C depth of grind is considered a Large Aggregate exposure. This option requires a substantial amount of grinding and will bring the highest per square foot price. It is however very popular due to the decorative nature of the aggregate itself. Large aggregate exposures typically reveal up to 1" rocks in you slab. As you can see it is quite beautiful!
(Level of Polish)
Level 1 Polished Concrete is considered a matte or honed finish and can be applied to any depth of grinding grade. This is a low to no light reflectivity polish, as well as the lowest installation cost. It is really nice for customers who want a floor that's au naturel. There is little to no maintenance, so it works great in the commercial and outdoor environments!
Level 2 Polished Concrete is considered a Satin finish with low to medium light reflectivity and can be applied to any depth of grinding grade. Very common in residential, commercial, and industrial applications because it is in that Goldilocks zone of being aesthetically pleasing while being relatively easy to maintain!
Level 3 Polished Concrete is considered a Medium finish with medium light reflectivity and can be applied to any depth of grinding grade except Grade A. This is a very popular polishing level due to the fact that it's slightly cheaper than a Level 4 yet enjoys many of the same benefits. It's mostly seen in commercial and industrial applications, but can be done for our residential customers!
Level 4 Polished Concrete is considered a Full Polish finish with high light reflectivity and can be applied to any depth of grinding grade except Grade A. This is also a very popular polishing level! With a Level 4 polish you will enjoy the utmost light reflectivity to brighten your space. Easy maintenance. And the jaw dropping shine that has made polished concrete a standard in the flooring industry for years!
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