No Mechanically Polished Concrete floor is the same. Every project has its own unique characteristics and cannot be replicated.
Mechanically Polished Concrete floor’s start at the plant where it’s batched specifically to order, it’s then transported as a wet paste to site where it’s passed through the hands of the concreter who push, pulls, manipulates it, floats it, screeds it and finally trowels it, giving it its own unique finish.
Many of these characteristics can be seen once a grinder has passed over the slab cutting off the slurry and exposing the aggregate (stones), in which enhancing and bringing to light all of the concrete’s features and peculiarities. Many variables come into play to produce a Mechanically Polished Concrete floor during the curing process, humidity, sunshine, temperature, and shade, just to name a few.
Once the concrete has cured for a period of 7-14 days, it is then ready for grinders to be placed on to the slab and start the mechanically polished concrete process by exposing the aggregate to the desired level of exposure whether that be;
– Minimal (removing 1-2mm of material)
– Random (removing 2-3mm of material)
– Full stone exposure removing up to 3-4mm of material.
If desired, The finished surface of the concrete slab can be polished this is referred to as a Surface Polish. For this finish to be successful the concreter needs to burnish the slab 100% perfectly flat without any high or low spots there is no margin for error. This process gives you a creamy industrial concrete look which will enhance any trowel marks or imperfections that were troweled into the finish by the concreter.
Our refined 19 step polishing process uses a variety of different diamond tooling, grout and densifier’s that chemically react with the concrete to bring the matrix (concrete between the aggregate) to the same density as the aggregate to enable us to begin the polishing process. There are three sheen levels we offer;
– Matte (400grit)
– Satin (800grit)
– High Gloss (3000grit).
Not all existing concrete floors can be polished depending on their condition. If this is deemed the case enquire about our range of Mechanically Polished Concrete Overlay’s. However, if deemed possible there may not be much choice regarding your stone exposure. For concrete to be polished it has to be honed 100% flat first. To start polishing, all diamond resin segments need come in contact with every inch of the floor as we make passes with the grinder, tightening and closing up the pours of the concrete with every pass which slowly brings the sheen to the floor.
Once the floor has been polished to the desired level of sheen, then using a top of the range premium colour enhansing penetrating sealer, the Mechanically Polished Concrete floor gets sealed, to prevent it from nasty staining substances.
The finished results will take your breath away whilst keeping you warm or cool due to its natural high thermal mass properties.
**It is important to remember with mechanically polished concrete, not all concrete even if it’s new can be polished hence it is vital that the selected concreter doing the project is aware of your intentions with the slab. If the concreter hasn’t finished a slab to be polished in the past, please don’t hesitate to contact us and find out what is required.