Concrete
Densifier
Densifier is a liquid chemical hardener that soaks into concrete and reacts inside it to make the surface denser, harder and less prone to dusting, which helps it take a polish.
A densifier is applied to the slab as a liquid. It penetrates the concrete and reacts with free lime and other compounds to form a harder surface. CPC Floor Coatings describes it as a liquid chemical hardener that makes the surface of the slab denser and more durable.
The same source explains that a densifier helps fill the microscopic pores in concrete. That reduces surface dusting, improves abrasion resistance, and prepares the floor for polishing.
For warehouses, shops and showrooms, dusting is a daily annoyance. Fine powder rises from a soft slab and settles on stock and equipment. Densifying addresses that at the source.
Densifier is not a coating. It does not sit on top, so it will not peel. It also does not fix cracks or deep stains.
Timing matters. It goes on during the polishing sequence, between steps of grit. Ask your contractor which type they use and how they confirm the slab is ready. Start with grinding to open the surface first.
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