We see so many floors that are prematurely worn or stained because the wrong product has been installed. For example mechanically polished concrete installed in a cafe. Although it looks good it is not a very good match as mechanically polished concrete will become easily stained from food and drinks. For an area like this it really needs a sealer to lock out the stains. Not just any sealer but a hardwearing sealer that will not wear out prematurely resulting in costly repairs.
Another example we see all the time is mechanically polished concrete on concrete that is too soft. It will look good for a while but as the softer concrete starts to wear it will lose its lustre pretty fast. Mechanically polished concrete really deserves a hard 32mpa concrete For long term performance. For projects were polished concrete is wanted but the concrete is a bit soft we recommend honed and sealed with a guard type product.