[Cob] Planter-tadlekt lime

[Dirtcheapbuilder-Charmaine Taylor]

THe DRUM WAS SLICK ENAMELED STEEL. I USED A  blue ladies' DRESS NETTING 
  stuck to a wet   (non toxic)  ASPHALT EMULSION  PAINTED ON TO MAKE A 
SCRATCHY "TOOTHY"  SURFACE, THEN I COVERED WITH A CLAY & AE 
[RUB-R-SLATE]   MIX,  left bumpy for more grip,   THEN THE LIME-paper  
PLASTER.

And TADELEKT IS A PURE LIME PLASTER, not sure how they make a sink of 
it, as it needs to be thin layers to cure like any lime- a 1-2" thick 
lime plaster will stay soft for years or decades if sheltered from air.

Since the lime is turning back to limestone ALSO, the waterglass was an 
aide, not a full solution I think.

  soaking a thin wafer of the paper -lime Does crumble if kept under 
water.

Charmaine
  I question  man-made global warming and  have NO  financial or 
emotional interest in the status quo.  real science tells the 
truth-everything is cyclical

On Feb 6, 2007, at 12:44 PM, Ron Becker wrote:

This comes as a surprise as I read in a few places that waterglass is 
not water proof and disolves in water.  It's dangerous to get most of 
my info from reading.  The drum was a cool idea and again I'd have bet 
the plaster wouldn't have stayed. What was the surface to the drum 
like?

Ron
Those who question global warming have a financial or emotional 
interest in the status quo.


On Feb 5, 2007, at 4:54 PM, Dirtcheapbuilder-Charmaine Taylor wrote:

> I plastered over a metal drum with my lime-paper mix and figured it 
> would all fall off.  but I also gave it one coat of waterglass.. and 
> after 2 wet winters nothing has got soggy, etc.!!!
>
> the colors have faded from the sun, but the plaster itself has turned 
> back to a limestone, and the waterglass ( thick like egg white) seems 
> to have protected it.
>  here is link to the photo, I used liquid bluing and drizzled it down 
> full strength, but now it is a light blue only..
>
> the colorful glass"necklace" is broken pipe and bong glass tossed out 
> that I salvaged.
>
> waterglass can be bought at reasonable cost from 
> www.chemistrystore.com.. type in sodium silicate
>
> barbara Roemer gave me a small jarfull, and that is what I used, not 
> sure where she got it, or what brand/type.
>
> here is an email from Ed
> From: Raduazo at aol.com
> Date: February 24, 2005 5:06:01 PM PST
>   \
>
> 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
>
>
> On Feb 5, 2007, at 2:38 PM, Michael Montagne wrote:
>
> I'm wondering if a planter is a good application for my next cob
> project.  I have an oven and a bench but the plaster work is not
> weathering the Portland, Oregon winter as well as I have liked.
> Now I'm pondering a front yard planter.  Perhaps with mosaic tile.  But
> how to waterproof?  Or is it just forcing an application that is best
> left to a material other than cob.
>
>
> -- 
> Michael Montagne
> michael at themontagnes.com
> http://www.themontagnes.com
>
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www.dirtcheapbuilder.com
PO BOX 375 CUTTEN CA 95534  USA
Tel:  707-441-1632
New Books-DVDs-CDs on Natural/House Building