For those of you who use hydrogen peroxide that is bought at a beauty supply: The peroxide now contains Phosphoric acid. You can still use it but its going to etch marble so be prepared to re polish--
Frederick M. Hueston PhD
www.stoneforensics.com
www.stoneandtilepros.com
Recommended stone care products http://www.stonecarecentral.comMany of my articles can be found at www.stoneandtilepros.comListen to my radio show www.blogtalkradio.com/drfredoffice 321 514 6845 begin_of_the_skype_highlighting 321 514 6845 end_of_the_skype_highlightingSee my specialty products at www.godrfred.com
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