[Cob] experience with Waterglass?

[otherfish]

I have a ball of cob that was made with linseed oil added to the mix.  It's
been sitting out in the rain fro two winters now and has not eroded
significantly or taken on any water at all.  Don't know how much linseed
oil, but guess it to be a fairly low percent of the mix.  Sort of like the
asphalt emulsion stabilization technique use in manufactured abobe brick.
This is a much better method of cob protection than a sourface only
treatment as is the case with waterglass.  Check out the standards for Adobe
in the Uniform Building Code , try the reference section in your local
library.
cob on,
otherfish 


on 2/24/05 5:06 PM, Raduazo at aol.com at Raduazo at aol.com wrote:

> 
> In a message dated 2/24/2005 7:55:24 P.M. Eastern Standard Time,
> clasdin at redjellyfish.net writes:
> 
> waterglass on cob benches and where in
> Northern California or Oregon  can it be bought???
> 
> 
> Yes You can buy it from Post Apple Scientific inc. in PA 16428 and it will
> waterproof cob however; I have heard that if the waterproof surface gets
> damaged  and water gets into the cob it will not allow water to evaporate
> properly. 
> I  have had good luck with linseed oil. It penetrates deep into the cob and
> forms a  deep waterproof layer not just a surface cover. My playhouse at Green
> Spring has  had 60 inches of rain with no roof or water protection what so
> ever 
> other than  the linseed oil.
> Ed
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