We use sprayer with foaming nozzle to keep chemicals on vertical walls. I agree with the previous post to use Prosoco cleaners but if that discoloration and most of the soils are grease then i would use Grout Devil (it is 13-14PH) and you can buy it at Jon-Don.
To agitate i would use scrubber pads from 3M or use Makita with 7" backing plate and black pad (can get that size at Gran Quarts).
For 48k sq ft I would use a truck mount. Suggest to hook up with someone if you don't have it.
Good luck

On Mon, Mar 29, 2010 at 2:06 PM, Baird Standish <bairdstandish@gmail.com> wrote:
Here's another question related to the subject:  how do I keep the
chemical on the vertical surface so that it has time to dwell?  Maybe
there's a way to soak terrycloth towels and tape up somehow?  Also,
other than using an angle grinder with an abrasive pad, is there a
contraption that anyone knows about that can clean a vertical wall
abrasively ( I do have an attachment fom my whissper extractor)?
Thanks,
Baird

On Thursday, March 25, 2010, Baird Standish <bairdstandish@gmail.com> wrote:
>
>
> Here are some pix.  Hope they come through.  I attached them before but I guess I was the only one that could see them.
> Baird
>
>
> On Thu, Mar 25, 2010 at 7:54 AM, Dr Fred <fhueston@stoneandtilepros.com> wrote:
>
>
> where are the pics?  non attached
>
> On Thu, Mar 25, 2010 at 1:43 AM, Stephen Webb <stephen@newlifemarblerestoration.com> wrote:
> You may want to check out Prosoco or K&E chemical, they have some very good products. www.klenztone.com
> ----- Original Message ----- From: "Baird Standish" <bairdstandish@gmail.com>
> To: "Restoration and Maintenance" <sccpartners@stoneandtilepros.com>
> Sent: Wednesday, March 24, 2010 4:19 AM
> Subject: [sccpartners] Glazed brick cleaning
>
>
> Hi.  We are looking at a large project involving removal of stains and cleaning up glazed brick walls in an old school.  I am pretty sure some of the yellowing is from old wax.  Not sure what some of the other stains are. We are doing a test late next week.  Some areas of grout are deteriorating due to water damage, it appears, from the outside wall migrating in.  Don't think the  custormer is looking for perfection, just a better, cleaner look. Was wondering if anyone has experience as to efficient methodology - equipment, chemicals, techniques etc.
>
> This is one of those jobs that is probably open ended enough that I would probably want to bid time and materials.  The whole building is 48,000 sf and includes 3 stories of hallways and a large gym.
>
> I attached some photos below.  Thanks.
> Baird
>
>
>
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> www.stoneforensics.com
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> ________________________________________
> From the desk of
> Baird Standish
> Managing Partner
> Facility Specialists, LLC
> 1616 Walnut St.
> Philadelphia, PA 19103
> Phone: 215-732-7505
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--
________________________________________
From the desk of
Baird Standish
Managing Partner
Facility Specialists, LLC
1616 Walnut St.
Philadelphia, PA 19103
Phone: 215-732-7505
Fax: 215-546-9160

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