paulsteen86 had written this in response to
http://www.thestuccocompany.com/main...ler-20166-.htm
:

You could use chemicals for this that can soften the sealing. but you
should be careful with this. You can also hire an expert to do this job
for can sure that your marble wont be affected by removing those marble
sealer. Try to visit Heaven Sent Floor Care their offer jobs similar to
this, just opened up to http://heavensentfloorcare.com/. Maybe this will
be helpful to you!