Friends,

We are attempting to help one of our contractor business partners. We are dealing with what appears to be an oil/grease type of stain. The material is either a Basaltina or Quartzite -charcoal grey. We honed the stone from 50 grit resin/ poulticed with a combo of klenzall and Dawn detergent. Then continued hone up to the 400 grit finish. Stain lighter- still visible and unacceptable. Can anyone share with me a good formula for this type of stain? Thanks in advance.

Ron
American Stone Care, Inc.