[Cob] Water colour- Rice Hull Ash

[Quinn]

Don't know why this didn't make it to the list the other day:  

Tung oil is good for finishing, with similar properties to linseed oil (also a drying oil) but it does not yellow.  Don't know how pricey, relative.  Carnuba wax can be got at the hardware store (perhaps not as pricey as the art supply store?), at least here in GA.

Also-- rice hull ash is used in other parts of the world to filter water, the way charcoal is used- only cheaper and more easily renewed.

If anyone tries tung oil on cob, I'd love to hear about the results.

Quinn
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<snip> One possible solution for safe coating over the watercolor on already 
> cured walls may be a layer of wood wax. I bought a can of MinWax 
> furniture wax, and using a soft cloth I applied over a backsplash area 
> of my clay painted sheetrock.  the clay paint turned dark, then when the 
> wax dried it was back to the same color, and water splashing from the 
> sink just beads up and does not sink into the plaster.
> 
<snip>> 
> Old fashion paste wax in a can very hard to find ( the kind mom used to 
> polish floors with in the 50's)  so the MinWax was a solution,  and 
> carnuba flakes of wax can be bought ( artist uses) but is very very pricey.
> 
> New subject-
> a local builder in my area gave me some rice hull ash ( made from 
> burning the waste rice hulls) which is used as a pozzolan with lime to 
> harden/strengthen it to a strong cement.  I was surprised it was jet 
> black in color, and extremely fine dust. am looking forward to fooling 
> with it to add to lime putty.  My friend did say it turns lime dark gray 
> and looks like cement, so that is a downer, but  am excited to test it 
> for various natural building uses.
> 
> Ya'll have a good turkey day..even if it is a  vegan style Tofurkey!
> 
> Ms. Charmaine  Taylor/ Taylor Publishing
> PO Box 375, Cutten   CA 95534 707-441-1632    books at dirtcheapbuilder.com
>  http://www.dirtcheapbuilder.com    http://www.papercrete.com