Polished concrete is becoming a very popular choice for a low maintenance floor that will provide many years of service. When combined with a concrete stain, polishing can elevate a plain gray concrete floor into a true work of art.
There are three main steps in the concrete polishing process. Grinding, honing and polishing. There are four classes of aggregate exposure including Cream, Fine Aggregate, Medium Aggregate and Large Aggregate. There are four levels of finish: Flat, Satin, Semi-Polished and Highly-Polished. We can discuss all of the options for the floor during a free consultation.
The grinding process typically entails using metal bonded diamond abrasives to bring the floor to a uniform finish. Not all concrete floors are brand new and some may even have had carpet, tile or a coating on them already. The first grinding step will typically remove any existing residue or coating that was left after the existing floor was demolished.
The first grinding step also determines what level of aggregate you want to see in the finished floor. These range from cream, fine aggregates (salt and pepper), medium aggregates and large aggregate. There are typically three metal bond diamond abrasive steps: 30/40 grit, 70/80 grit and 120/150 grit.
After the grinding process comes the honing process. The honing process begins with a 100 grit resin bonded diamond abrasive. Then proceeds with 200 grit and 400 grit resin bonded diamonds. During this process, the floor densified. Stain would also be applied in this stage.
The densifier is a liquid treatment that penetrates into the concrete and hardens the top layer of the concrete.
After the densifier has dried completely, the polishing process can begin. The polishing process starts with 800 grit resin bonded diamonds and can continue with 1500 grit and 3000 grit. It all depends on the level of gloss that you would like your floor to have.