I've got a commercial client with flamed granite floors. Their janitorial service has been using a product called Alpha -HPMULTI surface cleaner for routine maintenance,  which has a diluted ph of 2.5. So, effectively they've been hitting this floor with an acid for a couple of years.

Recommendations for restoring this?

Blain Haeg
512.257.3070 office
512.750.1242 mobile
www.GoldStandardFloorCare.com