Hi Eric,

I don't usually start at an 800 and go up to a 3000 with a marble.  I hardly ever have the need to go that high with marble because it is so soft.  With a resin it can cause some issues.  John is correct in that the honing process will be the clarity for your finished product.  However, if it does have a resin, the approach may need to be a little different.  We sometimes end up treating a stone with resin similar to a car exterior.  The MB-12 is a great polish (finish) but you have to watch the amount of water you use (water activates acid and can cause orange peeling) or you can accidentally burn it. The MB-12 with a hogs hair or even a white synthetic pad laced with hogs hair also help bring on a nice polish.  But the real detail is in your prep which is the honing process.  The finishing work is the polishing, cleaning and sealing. 

I'm not sure if you have had a chance, yet...but John Freitag's counter top class is amazing for this which also includes tips and tricks to help save supplies as well as time and leaving the counter looking in what my clients call "better than it did originally" condition.  Marble can behave like a toddler sometimes...especially if it has resins.  My thinking would be starting at a lower grit (watch your water levels) 220 grit, and take each step up to about 400-600....sometimes 800 if really need be then try MB-12.  Don't forget to clean with a pH neutral cleaner to deactivate those acids or else they can be re-activated by the simple use of water which can leave etch marks.  One of the really great things I learned in John's class that learning to identify the different scratch patterns.  It truly helps in a lot of different ways, including seeing the surface differently than I had been before.

Alex, my better half, is terrific with figuring out the stones with the resins that misbehave.  He has developed techniques and tricks. I'm not such a good one to talk about these as I just like the stones that behave properly :)

  But you can call him if you want to see if he can help you figure out the resin thing.  His cell is 919.609.5857.  


On Tue, Apr 30, 2013 at 4:42 PM, John Freitag <jfreitag@thestoneandtileschool.com> wrote:

ERIC,

 

Your clarity comes from honing process, the polishing process brings the shine and the gloss.

 

 

John E Freitag

Director

The Stone & Tile School

Office 407-567-7652

Cell 407-615-0134

jfreitag@thestoneandtileschool.com

 

schoollogo

 

www.thestoneandtileschool.com

 

 

 

From: subewl@gmail.com [mailto:subewl@gmail.com] On Behalf Of Eric - DGG
Sent: Monday, April 29, 2013 7:18 PM
To: Stone and Tile PROS Technical Support
Subject: RE: [sccpartners] MB-22 Issue

 

   Georgia: no, did not try MB-12. How is that different from 22? Funny you ask about resin... I don't know. It occurred to me on the way home though. Previously I've only been concerned with resining on granites. How would MB-22 affect a resined stone? 22 won't polish a resined stone?

 

   John: The etches are not the problem. They were removed completely starting at 800. They were not serious etches. The surface is completely uniform now, just lacking the clarity of the factory finish. Yes, this is marble. Acid sensitive and Mohs hardness between 3 and 4.


Eric Lewis, Technical Mgr

DirtyGroutGuys.com
West Chester, PA 19380

 

On Mon, Apr 29, 2013 at 7:04 PM, John Freitag <jfreitag@thestoneandtileschool.com> wrote:

Starting at an 800 grit would not remove the etch. Etch marks need tone started with at least a 220 diamond and go up from there.  At least 800 or 1800 feathering out each grit then polish. I am assuming this is a marble top not granite. The 800 and higher grits are polishing grits and will not remove damage on marble

Sent via DroidX2 on Verizon Wireless™



-----Original message-----

From: Eric - DGG <eric@dirtygroutguys.com>
To: Stone and Tile PROS Technical Support <sccpartners@stoneandtilepros.com>
Sent: Mon, Apr 29, 2013 22:40:19 GMT+00:00
Subject: [sccpartners] MB-22 Issue

   Good evening partners. Repairing an etched white marble island today (attached). 800, 1500, 3000 then MB-22 polish. Not even close to the factory finish. And the area that overlapped onto the factory finish had dulled it.

 

   Kind of lost here. Just did a vanity last week using same method that turned out fantastic.

 

   Upon closer inspection, while the factory finish appears flat as glass, the polished area seems microscopically pitted. Not like an orange peel... much smaller. I don't know if this is the cause of the lack of clarity.

 

 

Eric Lewis, Technical Mgr

DirtyGroutGuys.com
West Chester, PA 19380

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--

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Professional Regards,
Georgia Rivera

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