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| | Strange Brew..... (Site not responding. Last check: 2007-10-17) |
 | | Mostly reserved for floors, walls, and décor, these materials resemble glass in having silicates in common, as well as the friability property.They are fairly water resistant, but some of the alkaline oxides, that are present in the composition along with the silicates, provide weakness to chemical attack, especially acids.Refractory Silicates are highly stable, thermally. |
 | | This is GOOD corrosion.Used to clean and brighten metals that have beerstone buildups, or perhaps oxide buildups such as on the outside of a copper kettle. |
 | | BAD corrosion.This is caused by precipitation of uncontrolled water hardness.It may occur in any aspect of brewing or cleaning.Often, but not always, the precipitation is motivated by a corrosion cell (think about two halves of a battery) ongoing at the surface of some equipment. |
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