Muriatic acid undiluted maybe a little too toxic for the normal homeowner. I would try iron-out diluted, CLR or Kwink rust remover. We always try a large dilution with water and go stronger if it doesn't remove it at first



Happy Connecting. Sent from my Sprint Samsung Galaxy S® 5


-------- Original message --------
From: Blain Haeg <blain@goldstandardfloorcare.com>
Date: 05/16/2016 9:55 AM (GMT-05:00)
To: sccpartners@stoneandtilepros.simplelists.com
Subject: Re: Porcelain Tile & Grout - Consumer Question

Doug,


Consumer grade acids, such as muriatic that can be purchased at a pool supply store, can resolve most rust stains. Simply pour a small amount on the rust, allow it to dwell for just a moment, & then scrub with a stiff brush. Be sure to rinse the acid with a neutral cleaning product, as the acid will continue to abrade the grout if not removed thoroughly.

Note that some porcelains can be delicate and may be etched or damaged by the acid, so test in an inconspicuous place first. It can also be a good idea to water down the acid, first.

A less toxic option that works well on the tiles, but no so well on the grout, is a pumice stick such as this: http://www.walmart.com/ip/United-States-Pumice-HDW-12-Heavy-Duty-Scouring-Stick/23098372

Blain Haeg
Gold Standard Floor Care
512.257.3070 office
512.750.1242 cell
blain@goldstandardfloorcare.com
www.GoldStandardFloorCare.com

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On Mon, May 16, 2016 at 7:17 AM, Doug Smith <doug@stoneandtilepros.com> wrote:
Good Morning All,

I have a consumer that wants to know best way to remove rust stains from Porcelain tile as well as grout.
Your help is much appreciated.
Thanks,

Doug

--
Doug Smith
Stone and Tile PROS
 
  
 
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