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 with ferrous metals that can rust. If you leave an iron skillet outside in the…
“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 years. All the HMK products have been designed to work as a System. R55 Intensive…
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 This powerful acid will dissolve the top surface of all calcium based stone (marble, onyx…
