On 1-12-2009 14:17, Invisible wrote:
> http://en.wikipedia.org/wiki/Sodium_silicate
> 
> That's the longest list of "uses" I've seen for quite some time. This 
> stuff is, apparently, Really Useful.

Funnily the only use I knew is not in the list. Making ceramics 
waterproof if you don't fire it high enough to be non-porous. E.g. if 
you fire it Raku style.

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