[Jewelry making - Article 00133] - Re: [Orchid] Water glass

[John Burgess]

========[ Invite a Friend - http://www.ganoksin.com/invite.htm  ]========


    You rang Modom?     Water glass is a very strong solution of sodium
    meta silicate.  I would think that since cuttlebone is a calcareous
    material, the outer parts of it would be converted to calcium
    silicate which is not so crumbly.  This is what occurs when eggs are
    immersed in it; it gives them a siliceous coating that is impervious
    to air, and so they don't go rotten so quickly. it increases the
    strength of the shell too.   I cannot see that there would be any
    deleterious fumes other than the burning off of the cuttlebone's
    organic material by hot metal. 

    Another use for waterglass is to coat cement or concrete with it to
    make the surface more impervious to the carbon dioxide solution that
    comes dissolved in rain and eats it away over the years.    Another
    but similar use is that if you have a concrete tank which leaks, put
    on a pair of rubber gloves, pour some cement powder into one hand,
    pour a little water glass into a hollow, mix as fast as you can and
    ram it into the leak for it will set hard in just a few seconds,
    even under water. -- Cheers for now, John Burgess;   johnb AT ts.co.nz of
    Mapua Nelson NZ  

____________________________________________________________________
T h e   O r c h i d   L i s t
Open Electronic Forum for Jewelry Manufacturing Methods and Procedures
____________________________________________________________________
Orchid FAQ:
~ http://www.ganoksin.com/orchid/faq.htm
Orchid Archives:
~ http://www.ganoksin.com/orchid/archive
Orchid Galleries:
~ http://www.ganoksin.com/orchid/gallery.htm
Invite a Friend:
~ http://www.ganoksin.com/invite.htm
____________________________________________________________________
Tips From The Jeweler's Bench - Article Archive
~ http://www.ganoksin.com/borisat/tip_sear.htm
The Jeweler's Selected Bibliography List
~ http://www.ganoksin.com/jewelry-books
Buy Orchid Jewelry:
~ http://www.ganoksin.com/shop
____________________________________________________________________
-Unsubscribe:
-Email: orchid-request AT ganoksin.com Body=unsubscribe subject=blank
____________________________________________________________________