Monthly Archives: March 2015

Rust on Granite from Cast Iron Sink

We get an occasional call about the problem of Rust Stains near edge of top-mount sink. This is a problem caused by a poor job of sealing the lip of a cast iron sink. Of course cast iron is made … Continue reading

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“Can I dilute HMK R55 for Daily Use”?

We are asked this question all the time, and the simple answer is You CAN, but you should’t. Here is Why: HMK StoneCare Products have been deigned by German Chemists who have studied Natural Stone geology and chemistry for more than 40 … Continue reading

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Damaged Marble & Travertine using CLR

We receive many calls from frantic customers after using CLR – Calcium, Lime & Rust Remover damaging Marble & Travertine CLR from Jelmar is a powerful ACID (see MSDS Sheet HERE) The pH is 2.10-2.30 and Neutral pH is 7.0 … Continue reading

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