[Strawbale] Fwd: Hydrated Lime in Linseed Oil (was Re:Oak)

[Chris Green]

Rob Tom wrote:
> [an RT Aside:  One time lo-o-o-ong ago I seem to recall mentioning to Beel  
> and Harry something about window glazing putty wondering if it was made  
>  from lime putty and linseed oil. I forget what Harry's answer was but I  
> remember Beel wanting to make a wager.
> Sheesh. What a guy eh ? Betting on window putty. Back to Harry.]
That triggered my memories of watching my dad make window putty nearly 
50 years ago. So I looked up a recipe over at Encyclopedia Brittanica 
online.
> *Putty* is usually made by mixing whiting (powdered calcium carbonate) 
> and boiled *linseed oil* until they form a tough dough.
The Enc. Brit. ratios are 85-90% CaCO3 (chalk...) and 10-15% oil.

It would be a neat experiment to make window putty from coloured 
chalkline chalk. You can also add a teeny bit of cement colourant 
pigments to create coloured putty.
To make removal of hardened old putty a bit easier, wipe a coat or two 
of linseed oil on it and let it soak in.

Cheers,

Chris Green.