I'm doing a job for a GRAINGER store, getting ready for a big corporate inspection, cleaning their carpet and ceramic tile surfaces. I was asked if I could do anything with their 2600 sq ft of polished concrete floor in the showroom. Their current maintenance program is only perodic wet mopping. The floor is in real good shape except for dull areas where they have high traffic like in front of the counter and at the entrance. They are just asking if I can make the dull areas a little shinier. I've thought of mopping with a neutral cleaner followed by a white polishing pad. Have any of you encountered such and if so what have you done? Any thoughts or suggestions? No big deal if nothing reasonable can be done, just looking at possibly making an upsell.