[Cob] Mosaics in the shower

[Jill Hogan]

  Hi we want to put mosaics in the shower of Little Cottage. Two walls 
are cob and one is wattle and daub. All three are cover with a lime 
render. We add prickly pear juice to the render which acts as 
waterproofing. What do we use to set the mosaics to the wall and do we 
need to seal them and if we do with what do we seal them. Appreciate any 
advice on this.
Many thanks
Jill
You can see the little cottage on www.mat.org.za

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