Do you have another picture-Just looked at it on my home computer.
That may be an old Botticino, Botticino is very hard and dense, it takes time to cut.
Any better pics would be good.
If you can cut with 7 inch black or red dot vortex then switch to resin diamond 400 grit.
Then try polishing with MB-12(build a nice load on the pad)-If its Indiana limestone it should polish ok.

On Sun, May 31, 2015 at 3:34 PM, Chris <csantospago@gmail.com> wrote:
Stu

Yes I cut with electro plated in heavily scratched lower areas then polished back up to 800 diamonds. Used mb12 and Dia-Glo and then enhancer. Came very nice considering what it looked like before.
A lot of walls on this stairway (800 sf +).
Not doing all of it. They don't want to pay.
Some areas higher up have some chemical drip marks etching that I tried getting out with mb12 but wasn't working so I cut with diamonds. Went up to 1800 and used dia-Glo and tried mb12 but not getting full clarity like the surrounding areas. Problem is its in a very visible area as you come down the stairs with reflection from windows.
I would like to achieve a little more clarity. They may be fine with it as is but as long as I don't have to put too much more time in then I'm open to suggestions.
Fatigue factor is setting in and I'm working for free at this point lol

Sent from my iPhone

> On May 31, 2015, at 3:13 PM, Stu Rosen <rosen.stuart@gmail.com> wrote:
>
> That's Indiana Limestone slabs. Nice?
> Very responsive stone to work with.
> Are you cutting with diamonds or just trying to polish it out.
> Is there darkening of the stone over the years from airborne contamination?
> I can't see the detail in the pic. What are the issues you are trying to correct.
> How large is that wall?
>
>
>
> Sent from my iPad
>
>> On May 31, 2015, at 12:49 PM, Chris <csantospago@gmail.com> wrote:
>>
>> Hi partners
>>
>> I am restoring this polished limestone wall. Because of the unevenness of the slabs, I've basically hit the real bad areas and feathered. Higher up the wall has some chemical drip marks that I've had to hit and because of visual angle it is easier to notice a difference in gloss.
>> Tried dia-Glo and mb12
>> Any suggestions?
>>
>> Thanks Chris
>>
>> Sent from my iPhone
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--
Regards,
Stu Rosen
201-446-1200

"EVERYTHING MATTERS"