[Cob] Limewash

[Rodger Chenoweth]

Thank you Ed, and the others that replied to me.  I've been having 
better results now... I'm surprised how long it takes to get a smooth 
durable surface... many thin coats!  I tried putting thicker coats on 
but they just flaked.

I've heard differing opinions about which is the superior lime... Type 
S hydrated lime that one can buy at building supply stores, or true 
traditional lime putty from slaked quicklime(which I assume is hard to 
find in North America).  Any comments?

Rodger

On 18-Aug-05, at 9:59 AM, raduazo at aol.com wrote:

> Rodger,
>         Yes, lime plaster will harden to a dust free hard surface, and 
> it will do so almost imediately, although you should keep spraying it 
> with water every day for several weeks. I use an insectacide sprayer.
>         Are you sure that you are using mason's lime. You must buy 
> this at a masonry supply store not from a lawn and garden supply 
> store.
> Ed 
>  
> -----Original Message-----
> From: Rodger Chenoweth <rodger at nelsonbuddha.com>
> To: coblist at deatech.com
> Sent: Mon, 8 Aug 2005 20:30:42 -0700
> Subject: [Cob] Limewash
>
> > 
> > Hi there, 
> > I'm doing a lime plaster on a cob structure, and having a hard time 
> > figuring out how limewash sets, and works generally. It seems like > 
> the result is the same whether I wet the wall ahead of time or not... 
> > both cases end with a wall coated in lime. Both whiten nicely, but > 
> neither seem to harden. Every other coat of limewash seems to bring > 
> out the sand again, and just add more lime to the lime that was there. 
> > Is the idea to keep doing coats so that the lime builds on itself so 
> > that eventually it covers all the sand particles? And is it supposed 
> > to turn into a dust free hard surface? 
> > Cheers 
> > Rodger 
> > 
>  
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